{"id":5795,"date":"2025-12-25T01:34:00","date_gmt":"2025-12-25T01:34:00","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5795"},"modified":"2025-12-25T01:34:00","modified_gmt":"2025-12-25T01:34:00","slug":"thread-diameter-chart-major-pitch-minor","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/it\/blog\/thread-diameter-chart-major-pitch-minor\/","title":{"rendered":"Tabella dei diametri delle filettature: maggiore, passo, minore"},"content":{"rendered":"<div style=\"max-width: 1200px; margin: 0 auto; padding: 20px; font-family: Arial, sans-serif; line-height: 1.6; color: #333;\">\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Introduzione ai diametri delle filettature<\/h2>\n<p style=\"margin-bottom: 15px;\">I diametri delle filettature sono parametri fondamentali nella progettazione delle filettature, in quanto definiscono la geometria per un corretto accoppiamento e funzionamento negli assemblaggi meccanici. Il diametro maggiore rappresenta la dimensione pi\u00f9 esterna, il diametro primitivo la superficie di accoppiamento effettiva e il diametro minore la radice pi\u00f9 interna. Questi valori garantiscono intercambiabilit\u00e0 e resistenza, in conformit\u00e0 con standard come ISO 965 per le filettature metriche e ASME B1.1 per le filettature unificate in pollici.<\/p>\n<p style=\"margin-bottom: 15px;\">La comprensione di questi diametri \u00e8 essenziale per la produzione, l'ispezione e l'applicazione in settori quali l'automotive, l'aerospaziale e la meccanica. Questa tabella fornisce dimensioni dettagliate per filettature esterne e interne, comprese le tolleranze per le classi pi\u00f9 comuni come 6g\/6H (metrica) e 2A\/2B\/3A\/3B (pollici), per guidare gli ingegneri nella scelta delle tolleranze appropriate.<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>Diametro maggiore: cresta della filettatura (esterna) o radice (interna).<\/li>\n<li>Diametro primitivo: cilindro immaginario in cui lo spessore della filettatura \u00e8 uguale alla larghezza della scanalatura.<\/li>\n<li>Diametro minore: radice della filettatura (esterna) o cresta (interna).<\/li>\n<\/ul>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Diametri esterni delle filettature metriche (classe di tolleranza 6g, unit\u00e0: mm)<\/h2>\n<p style=\"margin-bottom: 15px;\">La tabella seguente riporta le dimensioni delle filettature esterne metriche con tolleranza inferiore a 6g, adatte per bulloni e viti di uso generale secondo la norma ISO 965-2. I valori includono diametro nominale, passo, diametro maggiore massimo\/minimo, diametro primitivo massimo\/minimo e diametro minore nominale. Utilizzare questi valori per la verifica del progetto al fine di garantire un corretto innesto e una distribuzione adeguata del carico.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Dimensioni della filettatura esterna<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro maggiore (d)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro primitivo (d2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro minore (d3) nominale<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro nominale<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Pece<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.382<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.307<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.187<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.131<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.057<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.581<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.496<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.354<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.291<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.202<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.981<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.886<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.721<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.654<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.548<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.08<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.888<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.817<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.693<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.38<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.117<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.993<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.98<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.874<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.655<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.58<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.439<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.479<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.354<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.089<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.004<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.83<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.978<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.838<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.523<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.433<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.22<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.478<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.338<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.991<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.901<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.666<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.456<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.361<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.11<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.974<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.794<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.325<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.213<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.892<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.974<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.794<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.325<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.213<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.892<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.972<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.066<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.619<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M9.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.972<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.066<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.619<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.968<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.732<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.862<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.968<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.732<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.862<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.966<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.863<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.679<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.106<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.962<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.503<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.962<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.503<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.623<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.376<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.164<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.294<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.623<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.376<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.164<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.294<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Diametri interni delle filettature metriche (classe di tolleranza 6H, unit\u00e0: mm)<\/h2>\n<p style=\"margin-bottom: 15px;\">Per le filettature interne metriche con tolleranza 6H, utilizzate in dadi e fori filettati secondo ISO 965-2, la tabella elenca il diametro nominale, il passo, il diametro maggiore nominale, il diametro primitivo massimo\/minimo e il diametro minore massimo\/minimo. Questi valori garantiscono un accoppiamento sicuro con le filettature esterne, riducendo al minimo il gioco e facilitando il montaggio.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Dimensioni della filettatura interna<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro maggiore (D) nominale<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro primitivo (D2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro minore (D1)<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro nominale<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Pece<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.418<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.205<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.142<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.075<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.619<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.458<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.373<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.22<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.019<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.83<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.74<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.679<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.567<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.003<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.908<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.838<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.713<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.303<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.208<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.138<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.013<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.02<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.775<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.675<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.599<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.459<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.521<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.222<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.01<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.85<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.022<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.663<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.545<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.422<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.242<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.522<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.131<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.013<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.878<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.688<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.024<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.605<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.48<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.334<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.134<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.028<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.348<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.912<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.647<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M9.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.028<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.348<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.912<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.647<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.032<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.206<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.032<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.034<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.06<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.863<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.441<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.106<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.701<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.74<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.294<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.042<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.376<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.74<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.294<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Diametri esterni della filettatura in pollici (UNC\/UNF, unit\u00e0: mm)<\/h2>\n<p style=\"margin-bottom: 15px;\">Le filettature in pollici unificate secondo la norma ASME B1.1 includono le serie UNC (grossolana) e UNF (fine). La tabella fornisce le dimensioni in mm per le filettature esterne, con classi di tolleranza 2A e 3A. Queste sono fondamentali per le applicazioni che richiedono la compatibilit\u00e0 con gli standard statunitensi, offrendo indicazioni sui valori massimi e minimi per una lavorazione di precisione.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Dimensione del filo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Classe di tolleranza<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro maggiore (d)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro primitivo (d2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro minore (d3) Max<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">1-64UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.83896<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.74244<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.58242<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.53162<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.36652<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75768<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.59766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.57734<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.38176<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">1-72UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.83896<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75006<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.61036<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5621<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.41986<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.7653<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6256<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.59004<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.4351<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">2-56UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.16916<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.06502<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.87452<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.82118<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.63068<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.08026<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.88976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.84912<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.64592<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">2-64UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.16916<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.07264<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.91262<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.86182<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.69672<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.08788<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.92786<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.88976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.71196<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">3-48UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.38252<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.15392<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.0955<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.86436<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.4003<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1717<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.12852<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.88214<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">3-56UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.39268<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.20218<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1463<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.95834<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.41046<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.21996<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.17932<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.97612<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">4-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.6924<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.413<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.3495<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.06756<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.71526<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.43332<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.38506<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.08788<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">4-48UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.71272<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48412<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.42316<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.19456<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7305<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5019<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.45618<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.21234<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">5-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.02514<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7432<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.67716<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.39776<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.04546<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.76352<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.71526<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.41808<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">5-44UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.0353<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7813<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7178<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.46888<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.05308<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.79908<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.75082<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48666<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">6-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.33248<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.96926<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.89814<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.54<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.3528<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.98958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.93624<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.56032<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">6-40UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.35534<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.0734<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.00736<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.72796<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.37566<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.09372<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.04292<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.74828<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">8-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.99034<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.62712<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.55346<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.19786<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.0132<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.64998<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5941<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.22072<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">8-36UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.00558<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.68808<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.61696<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.30454<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.0259<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7084<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.65506<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.32486<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">10-24 UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.61772<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.11226<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.02844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.54076<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.64312<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.13766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.07416<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.56616<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">10-32UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.65074<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.28752<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.21132<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.85826<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.6736<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.31038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.25196<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.88112<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">12-24 UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.27812<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.77266<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.6863<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.20116<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.30352<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.79806<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.73202<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.22656<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">12-28 UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.2959<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.87172<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.79044<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.37896<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.3213<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.89712<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.83616<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.40436<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/4-20UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.01218<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.49656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.35432<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.81076<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.32206<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.11632<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.49656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.40258<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.81076<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.14426<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5245<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.45338<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.8387<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/4-28 UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.07568<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.73532<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.60832<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.24256<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.3246<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.1595<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.73532<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.6515<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.24256<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.1849<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.76072<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.69722<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.26796<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">5\/16-18UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.9375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.57428<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.99008<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.83514<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.22808<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.90702<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.68604<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.99008<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.88848<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.22808<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.9375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.71652<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.02056<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.94436<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.25856<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">5\/16-24UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.9375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.63524<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.22122<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.08152<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.64972<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.90956<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.72668<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.22122<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.12724<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.64972<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.9375<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.75462<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.24916<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.18058<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.67766<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">3\/8-16UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.525<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.1313<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.46074<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.29564<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.59968<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.49198<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.25322<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.46074<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.34898<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.59968<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.525<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.28624<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.49376<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.40994<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.6327<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">3\/8-24UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.525<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.22274<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.80872<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.66394<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.23722<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.49706<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.31418<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.80872<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.7122<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.23722<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.525<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.34212<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.83666<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.763<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.26516<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">7\/16-14UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.68324<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.89838<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.71804<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.91794<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.07694<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.81532<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.89838<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.779<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.91794<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.85088<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.93394<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.84504<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.9535<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">7\/16-20UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.7696<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.30978<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.0965<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.56818<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.07948<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.87374<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.30978<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.1473<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.56818<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1125<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.90676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.3428<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.20826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.6012<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/2-13UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.24788<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.3919<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.20394<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.25906<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.6619<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.38504<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.3919<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.2649<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.33526<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.42314<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.33602<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.37336<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/2-20UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.3571<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.84148<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.67892<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1277<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.66698<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.46124<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.84148<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.73226<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.1735<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.49426<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.8745<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.79322<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.2065<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">9\/16-12UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.2875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.80998<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.87272<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.6746<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.72718<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.24686<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.9573<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.87272<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.74064<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.72718<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.2875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.99794<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.91336<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.8143<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.76782<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">9\/16-18UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.2875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.9192<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.335<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.16228<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.573<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.25194<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.03096<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.335<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.2207<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.573<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.2875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.06652<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.37056<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.2842<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.60856<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">5\/8-11UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.37208<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.33576<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.12494<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.08608<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.83436<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.52702<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.33576<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.19606<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.08608<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.56766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.3764<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.27226<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.12672<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">5\/8-18UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.5067<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.9225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.7447<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.1605<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.83944<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.61846<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.9225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.80312<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.1605<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.875<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.65402<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.95806<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.86916<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.19606<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">3\/4-10UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.51152<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.35328<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.12976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.97914<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.00428<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.67662<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.35328<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.20342<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.97914<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.72234<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.399<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.28724<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.02486<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">3\/4-16UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.65122<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.98066<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.79016<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.1196<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.0119<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.77314<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.98066<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.85366<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.1196<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.81124<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.01876<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.92224<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.1577<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">7\/8-9UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.64842<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.34286<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.10156<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.81632<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.17674<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.82368<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.34286<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.18284<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.81632<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.87194<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.39112<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.27174<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.86458<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">7\/8-14UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.79066<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.0058<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.80006<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.02536<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.18436<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.92274<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.0058<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.86864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.02536<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.225<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.96338<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.04644<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.9423<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.066<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1-8UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.7777<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.28672<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.03018<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.56968<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.3492<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.9682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.28672<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.114<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.56968<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.019<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.33752<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.20798<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.62048<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1-14UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.96566<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.17826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.9649<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.19528<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.35682<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.0952<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.17826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.03602<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.19528<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3A<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.13838<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.22144<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.11476<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.23846<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Diametri interni della filettatura in pollici (UNC\/UNF, unit\u00e0: mm)<\/h2>\n<p style=\"margin-bottom: 15px;\">Le filettature interne in pollici per dadi, conformi alla norma ASME B1.1, sono elencate con classi di tolleranza 2B e 3B. Le dimensioni in mm facilitano l'utilizzo a livello globale, contribuendo a garantire la compatibilit\u00e0 delle filettature e a prevenire grippaggi o bloccaggi durante il montaggio.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 14px;\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Dimensione del filo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Classe di tolleranza<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Diametro maggiore (D) minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro primitivo (D2)<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\" colspan=\"2\">Diametro minore (D1)<\/th>\n<\/tr>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"><\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Minimo<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Massimo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">1-64UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.59766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6637<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.42494<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.58242<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.59766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.64592<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.42494<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.58242<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">1-72UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6256<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6891<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.4732<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6129<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.8542<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6256<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.67386<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.4732<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6129<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">2-56UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.88976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.96088<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.69418<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.87198<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.88976<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.9431<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.69418<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.87198<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">2-64UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.92786<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.99644<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75514<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.91262<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1844<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.92786<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.97866<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75514<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.91262<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">3-48UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1717<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.2479<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.94056<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1463<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1717<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.22758<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.94056<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1463<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">3-56UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.21996<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.29108<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.02438<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1971<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5146<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.21996<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.2733<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.02438<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.1971<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">4-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.43332<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.51714<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.15646<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.38506<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.43332<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49428<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.15646<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.38506<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">4-48UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5019<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.58064<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.27076<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.45872<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8448<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.5019<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.56032<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.27076<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.45872<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">5-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.76352<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.84734<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48666<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.69748<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.76352<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.82702<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.48666<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.69748<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">5-44UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.79908<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.88036<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.55016<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.74066<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.175<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.79908<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.86004<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.55016<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.74066<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">6-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.98958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.08356<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.6416<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8956<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.98958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.05816<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.6416<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8956<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">6-40UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.09372<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.18008<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8194<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.0226<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5052<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.09372<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.15722<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.8194<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.0226<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">8-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.64998<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7465<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.302<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5306<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.64998<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7211<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.302<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5306<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">8-36UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7084<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.79984<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.4036<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.6068<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.7084<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.77698<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.4036<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.6068<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">10-24 UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.13766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.24688<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.683<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.9624<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.13766<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.21894<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.683<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.9624<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">10-32UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.31038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.40944<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.9624<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.826<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.31038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.38404<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.9624<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.1656<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">12-24 UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.79806<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.90982<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.3434<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5974<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.79806<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.88188<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.3434<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5974<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"2\">12-28 UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.89712<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.0038<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.4958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.7244<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4864<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.89712<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.97586<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.4958<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.7244<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/4-20UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5245<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.70992<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.9784<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.2578<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5245<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.64896<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.9784<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.2578<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5245<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.61594<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.9784<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.2578<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\" rowspan=\"3\">1\/4-28 UNF<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.76072<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.92582<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.3594<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.588<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.76072<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.86994<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.3594<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.588<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3B<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.76072<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.842<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.3594<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.588<\/td>\n<\/tr>\n<p><!-- Additional rows can be added if needed, but limited to provided data --><\/tbody>\n<\/table>\n<\/div>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Formule di calcolo per i diametri delle filettature<\/h2>\n<p style=\"margin-bottom: 15px;\">I diametri delle filettature possono essere calcolati utilizzando formule standard per verificare o progettare filettature personalizzate.<\/p>\n<p style=\"margin-bottom: 15px; font-style: italic;\">Per filettature metriche (esterne):<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>Diametro primitivo d2 = d \u2013 0,6495 * P<\/li>\n<li>Diametro minore d3 = d \u2013 1,0825 * P<\/li>\n<\/ul>\n<p style=\"margin-bottom: 15px;\">Dove d \u00e8 il diametro maggiore nominale e P \u00e8 il passo. Regolare per le tolleranze secondo ISO 965.<\/p>\n<p style=\"margin-bottom: 15px; font-style: italic;\">Per filettature in pollici (esterne):<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 15px;\">\n<li>Diametro primitivo = diametro maggiore \u2013 (0,6495 \/ n)<\/li>\n<li>Diametro minore = diametro maggiore \u2013 (1.0825 \/ n)<\/li>\n<\/ul>\n<p style=\"margin-bottom: 15px;\">Dove n rappresenta il numero di filetti per pollice. Fare riferimento alla norma ASME B1.1 per le tolleranze specifiche della classe.<\/p>\n<h2 style=\"font-size: 24px; font-weight: bold; margin-top: 40px; margin-bottom: 15px; color: #0056b3;\">Domande frequenti (FAQ)<\/h2>\n<dl style=\"margin-bottom: 15px;\">\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Qual \u00e8 la differenza tra diametro maggiore e diametro minore?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Il diametro maggiore \u00e8 il diametro pi\u00f9 ampio della filettatura (cresta per la filettatura esterna, base per quella interna), mentre il diametro minore \u00e8 il pi\u00f9 piccolo (base per la filettatura esterna, cresta per quella interna). Questi valori influenzano la resistenza e l'accoppiamento.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">In che modo la classe di tolleranza influisce sulle dimensioni?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Le classi di tolleranza come 6g\/6H offrono accoppiamenti pi\u00f9 ampi per l'uso generale, con limiti massimi\/minimi che garantiscono l'intercambiabilit\u00e0. Classi pi\u00f9 strette come 4g riducono il gioco per applicazioni di precisione.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Perch\u00e9 convertire le dimensioni in pollici in millimetri?<\/dt>\n<dd style=\"margin-bottom: 15px;\">La conversione facilita la progettazione globale, consentendo il confronto diretto con i sistemi metrici. Verificare sempre le unit\u00e0 per evitare errori in fase di produzione.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Qual \u00e8 il ruolo del diametro del passo?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Determina l'accoppiamento funzionale tra le filettature, influenzando la coppia di serraggio e la capacit\u00e0 di carico. Si misura utilizzando micrometri per filettature o calibri passa\/non passa.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Come scegliere tra fili grossi e fili sottili?<\/dt>\n<dd style=\"margin-bottom: 15px;\">Le filettature grosse (UNC) offrono un montaggio pi\u00f9 rapido e una maggiore resistenza al taglio; le filettature fini (UNF) offrono una migliore resistenza alle vibrazioni e regolazioni pi\u00f9 precise.<\/dd>\n<dt style=\"font-weight: bold; margin-bottom: 5px;\">Queste dimensioni si riferiscono a filettature placcate?<\/dt>\n<dd style=\"margin-bottom: 15px;\">I valori si riferiscono a filettature non placcate. Aggiungere il margine di placcatura (ad esempio, 0,002-0,005 mm per lato) e regolare le tolleranze di conseguenza, secondo gli standard.<\/dd>\n<\/dl>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduzione ai diametri delle filettature I diametri delle filettature sono parametri fondamentali nella progettazione delle filettature, in quanto definiscono la geometria per un corretto accoppiamento e funzionamento negli assemblaggi meccanici. Il diametro maggiore rappresenta la dimensione pi\u00f9 esterna, il diametro primitivo la superficie di accoppiamento effettiva e il diametro minore la radice pi\u00f9 interna. Questi valori garantiscono intercambiabilit\u00e0 e resistenza, nel rispetto di standard quali [\u2026]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[220],"tags":[],"class_list":["post-5795","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/posts\/5795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/comments?post=5795"}],"version-history":[{"count":1,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/posts\/5795\/revisions"}],"predecessor-version":[{"id":5796,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/posts\/5795\/revisions\/5796"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/media?parent=5795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/categories?post=5795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/it\/wp-json\/wp\/v2\/tags?post=5795"}],"curies":[{"name":"parola chiave","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}