{"id":5738,"date":"2025-12-24T03:35:24","date_gmt":"2025-12-24T03:35:24","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5738"},"modified":"2025-12-24T03:35:24","modified_gmt":"2025-12-24T03:35:24","slug":"gb-t-922-1986-wood-screw-thread-standard","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/gb-t-922-1986-wood-screw-thread-standard\/","title":{"rendered":"Ti\u00eau chu\u1ea9n ren v\u00edt g\u1ed7 GB\/T 922-1986"},"content":{"rendered":"<h2 dir=\"auto\">M\u1ee5c l\u1ee5c<\/h2>\n<ul dir=\"auto\">\n<li>K\u00edch th\u01b0\u1edbc ren<\/li>\n<li>Nguy\u00ean v\u1eadt li\u1ec7u<\/li>\n<li>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ren v\u00e0 y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t<\/li>\n<li>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/li>\n<\/ul>\n<div id=\"thread-dimensions\">\n<h2 dir=\"auto\">K\u00edch th\u01b0\u1edbc ren<\/h2>\n<p dir=\"auto\">Ti\u00eau chu\u1ea9n n\u00e0y cung c\u1ea5p k\u00edch th\u01b0\u1edbc ch\u00ednh x\u00e1c cho ren v\u00edt g\u1ed7 tr\u00ean nhi\u1ec1u k\u00edch th\u01b0\u1edbc danh ngh\u0129a kh\u00e1c nhau. Ch\u00fang bao g\u1ed3m gi\u1edbi h\u1ea1n cho \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf (d).<sub>1<\/sub>), b\u01b0\u1edbc ren (P), v\u00e0 tham s\u1ed1 b, li\u00ean quan \u0111\u1ebfn c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 h\u00ecnh h\u1ecdc ren. Tu\u00e2n th\u1ee7 ch\u00ednh x\u00e1c c\u00e1c k\u00edch th\u01b0\u1edbc n\u00e0y \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0103n kh\u1edbp ren t\u1ed1i \u01b0u v\u00e0 ph\u00e2n b\u1ed1 t\u1ea3i tr\u1ecdng trong ch\u1ea5t n\u1ec1n g\u1ed7. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t n\u00ean s\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u0111\u1ec3 ki\u1ec3m tra c\u00e1c ph\u00e9p \u0111o n\u00e0y trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t nh\u1eb1m tr\u00e1nh c\u00e1c sai l\u1ec7ch c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u1ee7a m\u1ed1i n\u1ed1i.<\/p>\n<div>\n<div>\n<div>\n<div><\/div>\n<\/div>\n<div class=\"table-container\" style=\"overflow-x: auto; width: 100%;\">\n<table dir=\"auto\" style=\"width: 100%;\">\n<thead>\n<tr>\n<th data-col-size=\"xl\">Danh ngh\u0129a d<\/th>\n<th data-col-size=\"sm\">1.6<\/th>\n<th data-col-size=\"sm\">2<\/th>\n<th data-col-size=\"sm\">2.5<\/th>\n<th data-col-size=\"sm\">3<\/th>\n<th data-col-size=\"sm\">3.5<\/th>\n<th data-col-size=\"sm\">4<\/th>\n<th data-col-size=\"sm\">4.5<\/th>\n<th data-col-size=\"sm\">5<\/th>\n<th data-col-size=\"sm\">5.5<\/th>\n<th data-col-size=\"sm\">6<\/th>\n<th data-col-size=\"sm\">7<\/th>\n<th data-col-size=\"sm\">8<\/th>\n<th data-col-size=\"sm\">10<\/th>\n<th data-col-size=\"sm\">12<\/th>\n<th data-col-size=\"sm\">16<\/th>\n<th data-col-size=\"sm\">20<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td data-col-size=\"xl\">d<sub>1<\/sub> t\u1ed1i \u0111a<\/td>\n<td data-col-size=\"sm\">1.2<\/td>\n<td data-col-size=\"sm\">1.4<\/td>\n<td data-col-size=\"sm\">1.8<\/td>\n<td data-col-size=\"sm\">2.1<\/td>\n<td data-col-size=\"sm\">2.5<\/td>\n<td data-col-size=\"sm\">2.8<\/td>\n<td data-col-size=\"sm\">3.2<\/td>\n<td data-col-size=\"sm\">3.5<\/td>\n<td data-col-size=\"sm\">3.8<\/td>\n<td data-col-size=\"sm\">4.2<\/td>\n<td data-col-size=\"sm\">4.9<\/td>\n<td data-col-size=\"sm\">5.6<\/td>\n<td data-col-size=\"sm\">7.2<\/td>\n<td data-col-size=\"sm\">8.7<\/td>\n<td data-col-size=\"sm\">12<\/td>\n<td data-col-size=\"sm\">15<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xl\">d<sub>1<\/sub> ph\u00fat<\/td>\n<td data-col-size=\"sm\">0.95<\/td>\n<td data-col-size=\"sm\">1.15<\/td>\n<td data-col-size=\"sm\">1.55<\/td>\n<td data-col-size=\"sm\">1.85<\/td>\n<td data-col-size=\"sm\">2.1<\/td>\n<td data-col-size=\"sm\">2.4<\/td>\n<td data-col-size=\"sm\">2.72<\/td>\n<td data-col-size=\"sm\">3.02<\/td>\n<td data-col-size=\"sm\">3.32<\/td>\n<td data-col-size=\"sm\">3.72<\/td>\n<td data-col-size=\"sm\">4.42<\/td>\n<td data-col-size=\"sm\">5.12<\/td>\n<td data-col-size=\"sm\">6.62<\/td>\n<td data-col-size=\"sm\">8.12<\/td>\n<td data-col-size=\"sm\">11.3<\/td>\n<td data-col-size=\"sm\">14.3<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xl\">Cao \u0111\u1ed9 P<\/td>\n<td data-col-size=\"sm\">0.8<\/td>\n<td data-col-size=\"sm\">0.9<\/td>\n<td data-col-size=\"sm\">1<\/td>\n<td data-col-size=\"sm\">1.2<\/td>\n<td data-col-size=\"sm\">1.4<\/td>\n<td data-col-size=\"sm\">1.6<\/td>\n<td data-col-size=\"sm\">1.8<\/td>\n<td data-col-size=\"sm\">2<\/td>\n<td data-col-size=\"sm\">2.2<\/td>\n<td data-col-size=\"sm\">2.5<\/td>\n<td data-col-size=\"sm\">2.8<\/td>\n<td data-col-size=\"sm\">3<\/td>\n<td data-col-size=\"sm\">3.5<\/td>\n<td data-col-size=\"sm\">4<\/td>\n<td data-col-size=\"sm\">5<\/td>\n<td data-col-size=\"sm\">6<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xl\">b \u2264<\/td>\n<td data-col-size=\"sm\">0.25<\/td>\n<td data-col-size=\"sm\">0.25<\/td>\n<td data-col-size=\"sm\">0.25<\/td>\n<td data-col-size=\"sm\">0.25<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.3<\/td>\n<td data-col-size=\"sm\">0.35<\/td>\n<td data-col-size=\"sm\">0.35<\/td>\n<td data-col-size=\"sm\">0.35<\/td>\n<td data-col-size=\"sm\">0.4<\/td>\n<td data-col-size=\"sm\">0.4<\/td>\n<td data-col-size=\"sm\">0.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p dir=\"auto\">L\u01b0u \u00fd: T\u1ea5t c\u1ea3 c\u00e1c \u0111\u01a1n v\u1ecb \u0111\u1ec1u t\u00ednh b\u1eb1ng milim\u00e9t. \u0110\u01b0\u1eddng k\u00ednh l\u1edbn nh\u1ea5t b\u1eb1ng gi\u00e1 tr\u1ecb danh ngh\u0129a. Tham s\u1ed1 b bi\u1ec3u th\u1ecb gi\u1edbi h\u1ea1n t\u1ed1i \u0111a, c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn chi\u1ec1u r\u1ed9ng ho\u1eb7c dung sai c\u1ee7a m\u1eb7t ph\u1eb3ng ren, \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a bi\u00ean d\u1ea1ng ren.<\/p>\n<\/div>\n<div id=\"materials\">\n<h2 dir=\"auto\">Nguy\u00ean v\u1eadt li\u1ec7u<\/h2>\n<p dir=\"auto\">Vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 \u1ed1c v\u00edt g\u1ed7 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc. Ti\u00eau chu\u1ea9n khuy\u1ebfn ngh\u1ecb c\u00e1c v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n \u0111\u1ea7y \u0111\u1ee7. L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p s\u1ebd t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n v\u00e0 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 l\u1eafp r\u00e1p \u0111\u1ed3 n\u1ed9i th\u1ea5t ho\u1eb7c khung k\u1ebft c\u1ea5u.<\/p>\n<ul dir=\"auto\">\n<li>Th\u00e9p cacbon: Q215, Q235 (theo ti\u00eau chu\u1ea9n GB 700)<\/li>\n<li>\u0110\u1ed3ng v\u00e0 h\u1ee3p kim \u0111\u1ed3ng: H62, HPb59-1 (theo ti\u00eau chu\u1ea9n GB 4424, GB 4425)<\/li>\n<\/ul>\n<p dir=\"auto\">Th\u00e9p cacbon mang l\u1ea1i \u0111\u1ed9 b\u1ec1n hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, trong khi h\u1ee3p kim \u0111\u1ed3ng cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i cho m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi ho\u1eb7c \u1ea9m \u01b0\u1edbt. Lu\u00f4n ki\u1ec3m tra ch\u1ee9ng ch\u1ec9 v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n.<\/p>\n<\/div>\n<div id=\"specifications\">\n<h2 dir=\"auto\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ren v\u00e0 y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t<\/h2>\n<p dir=\"auto\">C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft quy \u0111\u1ecbnh qu\u00e1 tr\u00ecnh t\u1ea1o ren v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng. Nh\u1eefng h\u01b0\u1edbng d\u1eabn n\u00e0y gi\u00fap t\u1ea1o ra c\u00e1c ren s\u1eafc b\u00e9n, ho\u00e0n ch\u1ec9nh, xuy\u00ean th\u1ea5u v\u00e0o g\u1ed7 hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng g\u00e2y h\u01b0 h\u1ea1i. Tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u khuy\u1ebft \u0111i\u1ec3m v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a v\u00edt.<\/p>\n<ol dir=\"auto\">\n<li>C\u00e1c lo\u1ea1i \u0111\u1ea7u ren \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong c\u00e1c h\u00ecnh v\u1ebd ti\u00eau chu\u1ea9n.<\/li>\n<li>\u0110\u01b0\u1eddng k\u00ednh l\u1edbn, \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf, \u0111u\u00f4i ren v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a hai ren \u0111\u1ea7u ti\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh; \u0111\u1ed9 nh\u00e1m s\u01b0\u1eddn ren Ra = 12,5 \u03bcm.<\/li>\n<li>Khi t\u1ed5ng s\u1ed1 s\u1ee3i ch\u1ec9 \u2264 10, s\u1ed1 s\u1ee3i ch\u1ec9 th\u1eeba \u1edf \u0111u\u00f4i l\u00e0 1~2; khi &gt;10, l\u00e0 3~5.<\/li>\n<li>C\u00e1c s\u1ee3i ch\u1ec9 ph\u1ea3i thu\u00f4n nh\u1ecdn d\u1ea7n v\u1ec1 ph\u00eda \u0111\u1ea7u nh\u1ecdn.<\/li>\n<li>Trong ph\u1ea7n chi\u1ec1u d\u00e0i c\u00f3 ren, ph\u1ea7n th\u00e2n c\u00f3 th\u1ec3 c\u00f3 h\u00ecnh tr\u1ee5 ho\u1eb7c h\u00ecnh n\u00f3n (h\u00ecnh n\u00f3n ng\u01b0\u1ee3c kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p).<\/li>\n<li>N\u1ebfu ren \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p c\u00e1n, v\u1edbi s\u1ef1 \u0111\u1ed3ng \u00fd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng, \u0111\u01b0\u1eddng k\u00ednh ph\u1ea7n th\u00e2n kh\u00f4ng c\u00f3 ren c\u00f3 th\u1ec3 nh\u1ecf h\u01a1n \u0111\u01b0\u1eddng k\u00ednh trong.<\/li>\n<li>C\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t:\n<ul dir=\"auto\">\n<li>B\u1ec1 m\u1eb7t ch\u1ec9 kh\u00f4ng c\u00f3 v\u1ebft n\u1ee9t ho\u1eb7c n\u1ebfp g\u1ea5p; kh\u00f4ng c\u00f3 s\u1ee3i ch\u1ec9 n\u00e0o b\u1ecb \u0111\u1ee9t \u0111o\u1ea1n ngo\u1ea1i tr\u1eeb hai s\u1ee3i \u0111\u1ea7u v\u00e0 s\u1ee3i cu\u1ed1i.<\/li>\n<li>B\u1ec1 m\u1eb7t v\u00edt kh\u00f4ng b\u1ecb r\u1ec9 s\u00e9t; kh\u00f4ng c\u00f3 v\u1ebft n\u1ee9t, v\u1ebft l\u00f5m, g\u1edd, bo tr\u00f2n ho\u1eb7c g\u1edd th\u1eeba \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p dir=\"auto\">C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y h\u01b0\u1edbng d\u1eabn c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t nh\u01b0 c\u00e1n ho\u1eb7c c\u1eaft, \u0111\u1ea3m b\u1ea3o \u1ed1c v\u00edt \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 s\u1eed d\u1ee5ng an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<\/div>\n<div id=\"faq\">\n<h2 dir=\"auto\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n<dl>\n<dt>Tham s\u1ed1 b trong b\u1ea3ng k\u00edch th\u01b0\u1edbc bi\u1ec3u th\u1ecb \u0111i\u1ec1u g\u00ec?<\/dt>\n<dd>Th\u00f4ng s\u1ed1 b quy \u0111\u1ecbnh gi\u1edbi h\u1ea1n t\u1ed1i \u0111a, th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn h\u00ecnh d\u1ea1ng ren ho\u1eb7c dung sai v\u1ec1 s\u1ef1 thay \u0111\u1ed5i b\u01b0\u1edbc ren, \u0111\u1ea3m b\u1ea3o s\u1ef1 \u0103n kh\u1edbp ren \u0111\u1ed3ng \u0111\u1ec1u trong g\u1ed7.<\/dd>\n<dd><\/dd>\n<dt>T\u1ea1i sao \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t l\u1ea1i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh cho c\u00e1c m\u1eb7t b\u00ean c\u1ee7a ren?<\/dt>\n<dd>Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 nh\u00e1m c\u1ea1nh Ra = 12,5 \u03bcm gi\u00fap vi\u1ec7c l\u1eafp \u0111\u1eb7t di\u1ec5n ra tr\u01a1n tru v\u00e0 gi\u1ea3m ma s\u00e1t, ng\u0103n ng\u1eeba h\u01b0 h\u1ea1i g\u1ed7 v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng gi\u1eef ch\u1eafc.<\/dd>\n<dd><\/dd>\n<dt>Ph\u1ea7n th\u00e2n c\u1ee7a tr\u1ee5c c\u00f3 th\u1ec3 c\u00f3 h\u00ecnh n\u00f3n trong khu v\u1ef1c ren kh\u00f4ng?<\/dt>\n<dd>\u0110\u00fang v\u1eady, ti\u00eau chu\u1ea9n cho ph\u00e9p h\u00ecnh d\u1ea1ng th\u00e2n h\u00ecnh tr\u1ee5 ho\u1eb7c h\u00ecnh n\u00f3n \u1edf ph\u1ea7n ren, nh\u01b0ng c\u1ea5m h\u00ecnh n\u00f3n ng\u01b0\u1ee3c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac.<\/dd>\n<dd><\/dd>\n<dt>Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0o \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n?<\/dt>\n<dd>C\u00e1c h\u1ee3p kim \u0111\u1ed3ng nh\u01b0 H62 ho\u1eb7c HPb59-1 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng v\u00ec kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi ho\u1eb7c \u1ea9m \u01b0\u1edbt theo ti\u00eau chu\u1ea9n GB 4424 v\u00e0 GB 4425.<\/dd>\n<dd><\/dd>\n<dt>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng s\u1ee3i th\u1eeba?<\/dt>\n<dd>\u0110\u1ed1i v\u1edbi t\u1ed5ng s\u1ed1 ren \u226410, h\u00e3y s\u1eed d\u1ee5ng 1-2 ren \u0111u\u00f4i; \u0111\u1ed1i v\u1edbi &gt;10, h\u00e3y s\u1eed d\u1ee5ng 3-5 ren \u0111u\u00f4i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 c\u00f4n v\u00e0 h\u00ecnh th\u00e0nh \u0111\u1ea7u ren \u0111\u00fang c\u00e1ch.<\/dd>\n<dd><\/dd>\n<\/dl>\n<dl>\n<dt>\u1ed0c v\u00edt g\u1ed7 c\u00f3 \u0111\u01b0\u1ee3c ph\u00e9p c\u00f3 khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t kh\u00f4ng?<\/dt>\n<dd>Kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 v\u1ebft n\u1ee9t, n\u1ebfp g\u1ea5p ho\u1eb7c s\u1ee3i ch\u1ec9 ch\u01b0a ho\u00e0n thi\u1ec7n ngo\u1ea1i tr\u1eeb \u1edf nh\u1eefng khu v\u1ef1c \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh; b\u1ec1 m\u1eb7t t\u1ed5ng th\u1ec3 ph\u1ea3i kh\u00f4ng b\u1ecb r\u1ec9 s\u00e9t, m\u00f3p m\u00e9o v\u00e0 g\u1edd s\u1eafc \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ee9c n\u0103ng.<\/dd>\n<\/dl>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Table of Contents Thread Dimensions Materials Thread Specifications and Surface Requirements Frequently Asked Questions (FAQ) Thread Dimensions The standard provides precise dimensions for wood screw threads across various nominal sizes. These include limits for the minor diameter (d1), pitch (P), and parameter b, which relates to thread geometry constraints. Accurate adherence to these dimensions ensures [&hellip;]<\/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-5738","post","type-post","status-publish","format-standard","hentry","category-technical-documentation-and-references"],"_links":{"self":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/comments?post=5738"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5738\/revisions"}],"predecessor-version":[{"id":5740,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5738\/revisions\/5740"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5738"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}