{"id":5774,"date":"2025-12-25T01:00:42","date_gmt":"2025-12-25T01:00:42","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5774"},"modified":"2025-12-25T01:00:42","modified_gmt":"2025-12-25T01:00:42","slug":"metric-unified-tapping-drill-sizes-chart","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/es\/blog\/metric-unified-tapping-drill-sizes-chart\/","title":{"rendered":"Tabla de tama\u00f1os de brocas de roscado m\u00e9tricas y unificadas"},"content":{"rendered":"<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Introducci\u00f3n al roscado y a los di\u00e1metros de los agujeros roscados<\/h2>\n<p style=\"margin-bottom: 20px;\">Esta gu\u00eda completa proporciona tablas estandarizadas para el tama\u00f1o de las brocas de roscado y los di\u00e1metros de rosca interna resultantes para roscas m\u00e9tricas y unificadas. De acuerdo con las normas ISO y ANSI\/ASME, la preparaci\u00f3n precisa del orificio es fundamental para obtener roscas internas de alta calidad. Estas tablas se centran en machos de extrusi\u00f3n (machos de conformaci\u00f3n sin viruta), que deforman el material sin cortarlo, ofreciendo ventajas en resistencia y operaciones sin viruta. Para machos de corte, consulte el di\u00e1metro m\u00e1ximo del orificio despu\u00e9s del roscado como referencia. Todas las dimensiones est\u00e1n en mil\u00edmetros (mm) a menos que se especifique lo contrario, lo que garantiza el cumplimiento de las normas de la industria como ISO 724 para roscas m\u00e9tricas y ASME B1.1 para roscas unificadas.<\/p>\n<p style=\"margin-bottom: 20px;\">La selecci\u00f3n adecuada del di\u00e1metro de los orificios de pre-roscado minimiza la rotura de la broca, garantiza la integridad de la rosca y optimiza el rendimiento del ensamblaje. Factores como la ductilidad del material, la lubricaci\u00f3n y la rigidez de la m\u00e1quina influyen en los resultados. Este recurso es esencial para maquinistas, ingenieros y fabricantes en los sectores aeroespacial, automotriz y de aplicaciones mec\u00e1nicas en general.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Conceptos clave: Di\u00e1metro interno del orificio antes del roscado frente al di\u00e1metro interno de la rosca despu\u00e9s del roscado.<\/h2>\n<p style=\"margin-bottom: 20px;\">Es fundamental comprender la distinci\u00f3n entre el di\u00e1metro del orificio antes del roscado y el di\u00e1metro de la rosca interna despu\u00e9s del roscado:<\/p>\n<ul style=\"list-style-type: disc; margin-left: 20px; margin-bottom: 20px;\">\n<li><strong>Di\u00e1metro del orificio de pre-roscado:<\/strong> El tama\u00f1o inicial del orificio perforado antes del roscado est\u00e1 dise\u00f1ado para machos de extrusi\u00f3n, lo que permite el flujo del material y la formaci\u00f3n de roscas sin aplicar una fuerza excesiva.<\/li>\n<li><strong>Di\u00e1metro interno de la rosca despu\u00e9s del roscado:<\/strong> El di\u00e1metro menor de la rosca interna formada, medido despu\u00e9s del roscado, que debe ajustarse a las clases de tolerancia (por ejemplo, 6H para el sistema m\u00e9trico).<\/li>\n<\/ul>\n<p style=\"margin-bottom: 20px;\">Para machos de extrusi\u00f3n, los orificios de pre-roscado suelen ser 5-15% m\u00e1s peque\u00f1os que para machos de corte, con el fin de facilitar la deformaci\u00f3n pl\u00e1stica. Siempre verifique las especificaciones del material, ya que materiales m\u00e1s duros como el acero inoxidable pueden requerir tama\u00f1os ajustados para evitar el endurecimiento por deformaci\u00f3n o la falla del macho.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Tama\u00f1os de brocas m\u00e9tricas de rosca gruesa para roscado (machos de extrusi\u00f3n)<\/h2>\n<p style=\"margin-bottom: 20px;\">La siguiente tabla detalla las roscas m\u00e9tricas gruesas seg\u00fan la norma ISO 724. Incluye los di\u00e1metros menores (m\u00edn.\/m\u00e1x.) posteriores al roscado y los tama\u00f1os de orificio previos al roscado para machos de extrusi\u00f3n. Util\u00edcelos para acero al carbono est\u00e1ndar; aj\u00fastelos para aleaciones seg\u00fan su ductilidad.<\/p>\n<div class=\"scrollable-table\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Especificaci\u00f3n<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Agujero m\u00ednimo posterior al roscado (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Agujero m\u00e1ximo despu\u00e9s del roscado (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00edn. (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00e1x. (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1x0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.78<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.1\u00d70.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.83<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.89<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.2\u00d70.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.93<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.98<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4\u00d70.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.08<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.26<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.32<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.7\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.55<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.8\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2x0.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.57<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.67<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.77<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.83<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2\u00d70.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.71<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.95<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.01<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.3\u00d70.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.87<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.97<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.07<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.13<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5\u00d70.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.01<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.31<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.6\u00d70.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.12<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.41<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.46<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.72<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.79<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5\u00d70.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.85<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.01<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.24<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4x0.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.42<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.69<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5\u00d70.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.69<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.88<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.07<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.17<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5x0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.65<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.92<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.55<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.92<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.55<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8x1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.65<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.29<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.42<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M9x1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.65<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.91<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.29<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.42<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.38<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.68<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M11x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.38<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.68<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12x1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.44<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.01<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.19<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Nota: Las celdas en blanco indican valores est\u00e1ndar que normalmente no se recomiendan para la extrusi\u00f3n en estos tama\u00f1os; consulte la norma ISO 965 para conocer las alternativas.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Tama\u00f1os de brocas m\u00e9tricas para roscado fino (machos de extrusi\u00f3n)<\/h2>\n<p style=\"margin-bottom: 20px;\">Las roscas m\u00e9tricas finas ofrecen mayor resistencia en aplicaciones con alta vibraci\u00f3n. La tabla que se muestra a continuaci\u00f3n se ajusta a la serie de paso fino ISO 724, con tama\u00f1os de pre-roscado optimizados para machos de extrusi\u00f3n en materiales d\u00factiles.<\/p>\n<div class=\"scrollable-table\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Especificaci\u00f3n<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Di\u00e1metro est\u00e1ndar (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00e1x. (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00edn. (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.0x0.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.821<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.783<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.1\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.921<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.883<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.2\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.021<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0.983<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.4\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.221<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.183<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.6\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.421<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.383<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.7\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.46<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M1.8\u00d70.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.621<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.583<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.0x0.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.785<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.729<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.2\u00d70.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.95<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.985<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.929<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.3\u00d70.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.061<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.001<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.5\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.221<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.121<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M2.6\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.246<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.186<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.0x0.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.721<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.621<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M3.5\u00d70.35<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.2<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.221<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.121<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.0x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.599<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.459<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M4.5\u00d70.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.099<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.959<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5.0x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.599<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.459<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M5.5\u00d70.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.099<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.959<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6.0x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M6.0x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7.0x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M7.0x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8.0x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8.0x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M8.0x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M9.0x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M9.0x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10x1.25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.912<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.647<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M10x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M11x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M11x0.75<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.378<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.188<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M12x0.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.52<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.4<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M14x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M15x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M15x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M16x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">14.91<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M17x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M17x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">15.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M18x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">17.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M20x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">18.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M22x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M24x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M25x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M25x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M25x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">23.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M26x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">24.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M27x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M28x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">25.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M28x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M28x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">27.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30x3.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">27<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">27.252<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">26.752<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">27.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M30x1.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">29<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">29.153<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">28.917<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M32x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">29.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M32x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33x3.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.252<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">29.752<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">30.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M33x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">31.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36x3.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.252<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">32.752<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36x2.0<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34.21<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.835<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M36x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">34.376<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">M35x1.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.5<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.676<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">33.376<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Para roscas finas, aseg\u00farese de que la profundidad del orificio supere la longitud de la rosca en al menos 1,5 veces el paso para permitir el paso de la broca y el flujo del material.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Tama\u00f1os de brocas para roscado de rosca gruesa unificada (UNC) (machos de extrusi\u00f3n)<\/h2>\n<p style=\"margin-bottom: 20px;\">Las roscas unificadas de paso grueso (UNC) seg\u00fan la norma ASME B1.1 son comunes en aplicaciones norteamericanas. Las dimensiones se convierten a mil\u00edmetros para mayor coherencia, aunque se indican las especificaciones originales en pulgadas.<\/p>\n<div class=\"scrollable-table\" style=\"overflow-x: auto; margin-bottom: 20px;\">\n<table style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Especificaci\u00f3n<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Agujero m\u00ednimo posterior al roscado (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Agujero m\u00e1ximo despu\u00e9s del roscado (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00edn. (mm)<\/th>\n<th style=\"background-color: #f2f2f2; border: 1px solid #ddd; padding: 8px;\">Roscado previo m\u00e1x. (mm)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 1-64UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.43<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.58<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.63<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.71<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 2-56UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.69<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.87<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.93<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.02<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 3-48UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1.94<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.22<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.32<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 4-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.16<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.61<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 5-40UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.49<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.7<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.82<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.92<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 6-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.64<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">2.9<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.05<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.19<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 8-32UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.3<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.53<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.71<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.83<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 10-24UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.68<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3.96<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.23<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.37<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">N.\u00ba 12-24UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.34<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.88<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.02<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/4-20UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">4.98<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.26<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.63<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.77<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/16-18UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.4<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6.73<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.13<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.3<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/8-16UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7.8<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.15<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.63<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">8.8<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/16-14UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.14<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9.55<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.09<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.29<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1\/2-13UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">10.59<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.02<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.6<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.82<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">9\/16-12UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">11.99<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">12.45<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5\/8-11UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.39<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">13.87<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">3\/4-10UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.31<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">16.84<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">7\/8-9UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.18<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">19.76<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">1-8UNC<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">21.97<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">22.61<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"margin-bottom: 20px;\">Para tama\u00f1os UNC mayores, los machos de extrusi\u00f3n pueden requerir equipos especializados; para di\u00e1metros superiores a 1\/2 pulgada, a menudo se prefieren los machos de corte.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Mejores pr\u00e1cticas para operaciones de extracci\u00f3n de mineral<\/h2>\n<p style=\"margin-bottom: 20px;\">Para lograr resultados \u00f3ptimos en el tapping:<\/p>\n<ol style=\"list-style-type: decimal; margin-left: 20px; margin-bottom: 20px;\">\n<li>Para el pre-roscado de agujeros, seleccione brocas con tolerancias H7 o superiores.<\/li>\n<li>Utilice fluidos de corte o lubricantes adecuados para la extrusi\u00f3n (por ejemplo, aceites de alta viscosidad para el aluminio).<\/li>\n<li>Mantenga la alineaci\u00f3n de la terraja dentro de 0,1 grados para evitar la deformaci\u00f3n de la rosca.<\/li>\n<li>Inspeccione las roscas con calibres pasa\/no pasa despu\u00e9s del roscado para garantizar el cumplimiento de las normas.<\/li>\n<li>Para la producci\u00f3n en grandes vol\u00famenes, considere el roscado CNC con ciclos intermitentes para reducir la acumulaci\u00f3n de calor.<\/li>\n<\/ol>\n<p style=\"margin-bottom: 20px;\">El cumplimiento de estas pr\u00e1cticas mejora la calidad de la rosca, reduce los defectos y prolonga la vida \u00fatil de la herramienta, en consonancia con las recomendaciones de ASME e ISO.<\/p>\n<h2 style=\"font-size: 1.5em; margin-top: 40px;\">Preguntas frecuentes<\/h2>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfCu\u00e1l es la diferencia entre los machos de roscar de extrusi\u00f3n y los de corte?<\/h3>\n<p style=\"margin-bottom: 20px;\">Los machos de extrusi\u00f3n forman roscas desplazando el material, produciendo roscas m\u00e1s resistentes y sin virutas, ideales para metales blandos. Los machos de corte eliminan material, adecuados para aleaciones m\u00e1s duras, pero generan virutas que requieren un tratamiento especial.<\/p>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfC\u00f3mo puedo ajustar el tama\u00f1o de los orificios de pre-roscado para diferentes materiales?<\/h3>\n<p style=\"margin-bottom: 20px;\">Para materiales d\u00factiles como el lat\u00f3n, utilice el tama\u00f1o m\u00ednimo de roscado previo. Para materiales fr\u00e1giles como el hierro fundido, opte por machos de roscar de corte y orificios m\u00e1s grandes para evitar grietas, seg\u00fan las normas espec\u00edficas del material, como la ASTM.<\/p>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfPor qu\u00e9 algunas celdas de la tabla est\u00e1n en blanco?<\/h3>\n<p style=\"margin-bottom: 20px;\">Las etiquetas en blanco indican tama\u00f1os en los que el roscado por extrusi\u00f3n es menos com\u00fan o no est\u00e1 estandarizado; consulte la norma ISO 965 o la norma ASME B1.1 para obtener alternativas o utilice las directrices de roscado por corte.<\/p>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfQu\u00e9 clase de tolerancia debo buscar en los hilos internos?<\/h3>\n<p style=\"margin-bottom: 20px;\">Para uso general, se recomiendan tolerancias de 6H (m\u00e9tricas) o 2B (unificadas). Las aplicaciones de precisi\u00f3n pueden requerir tolerancias de 4H o 3B, verificadas con calibres calibrados.<\/p>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfSe pueden utilizar estas tablas para el acero inoxidable?<\/h3>\n<p style=\"margin-bottom: 20px;\">S\u00ed, pero aumente el di\u00e1metro del orificio de pre-roscado en 2-5% para grados de endurecimiento por deformaci\u00f3n como el 304SS para evitar el agarrotamiento. Realice siempre una prueba piloto y aplique compuestos antigripantes.<\/p>\n<h3 style=\"font-size: 1.2em; margin-top: 20px;\">\u00bfQu\u00e9 profundidad debe tener el orificio perforado para el roscado?<\/h3>\n<p style=\"margin-bottom: 20px;\">Taladre con una profundidad al menos 1,5-2 veces mayor que la profundidad de la rosca m\u00e1s la longitud del chafl\u00e1n del macho para asegurar un acoplamiento completo de la rosca y evitar que toque fondo.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Introducci\u00f3n al roscado y di\u00e1metros de orificios roscados Esta gu\u00eda completa proporciona tablas estandarizadas para tama\u00f1os de brocas de roscado y di\u00e1metros de rosca interna resultantes para roscas m\u00e9tricas y unificadas. Seg\u00fan las normas ISO y ANSI\/ASME, una preparaci\u00f3n precisa del orificio es fundamental para lograr roscas internas de alta calidad. Estas tablas se centran en machos de extrusi\u00f3n (machos de conformado sin viruta), que deforman el [\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-5774","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/posts\/5774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/comments?post=5774"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/posts\/5774\/revisions"}],"predecessor-version":[{"id":5776,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/posts\/5774\/revisions\/5776"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/media?parent=5774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/categories?post=5774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/es\/wp-json\/wp\/v2\/tags?post=5774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}