{"id":6709,"date":"2023-10-05T17:25:42","date_gmt":"2023-10-05T09:25:42","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6709"},"modified":"2026-06-18T17:27:30","modified_gmt":"2026-06-18T09:27:30","slug":"nut-grade-and-bolt-torque-matching-rules-for-safe-assembly","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/nut-grade-and-bolt-torque-matching-rules-for-safe-assembly\/","title":{"rendered":"C\u1ea5p \u0111ai \u1ed1c v\u00e0 m\u00f4-men xo\u1eafn bu-l\u00f4ng: Quy t\u1eafc ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u1eafp r\u00e1p an to\u00e0n"},"content":{"rendered":"<p>C\u1ea5p \u0111ai \u1ed1c v\u00e0 m\u00f4-men xo\u1eafn c\u1ee7a bu-l\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn ri\u00eang. Trong c\u00f4ng vi\u1ec7c l\u1eafp r\u00e1p th\u1ef1c t\u1ebf, ch\u00fang kh\u00f4ng th\u1ec3 t\u00e1ch r\u1eddi.<\/p>\n\n\n\n<p>Bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao t\u1ef1 n\u00f3 kh\u00f4ng t\u1ea1o ra m\u1ed1i n\u1ed1i an to\u00e0n. \u0110ai \u1ed1c ph\u1ea3i ch\u1ecbu t\u1ea3i ren. V\u00f2ng \u0111\u1ec7m ph\u1ea3i h\u1ed7 tr\u1ee3 b\u1ec1 m\u1eb7t \u1ed5 tr\u1ee5c. Ph\u01b0\u01a1ng ph\u00e1p si\u1ebft ch\u1eb7t ph\u1ea3i t\u1ea1o ra t\u1ea3i tr\u01b0\u1edbc ph\u00f9 h\u1ee3p m\u00e0 kh\u00f4ng l\u00e0m tu\u1ed9t ren, l\u00e0m n\u00e1t v\u00f2ng \u0111\u1ec7m ho\u1eb7c l\u00e0m m\u1ea5t bu l\u00f4ng.<\/p>\n\n\n\n<p>Khi ng\u01b0\u1eddi mua ch\u1ec9 x\u00e1c \u0111\u1ecbnh lo\u1ea1i bu l\u00f4ng v\u00e0 \u0111\u1ec3 l\u1ea1i \u0111ai \u1ed1c l\u00e0 \u201ckh\u1edbp\u201d, c\u00e1c v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t ho\u1eb7c sau khi kh\u1edbp n\u1ed1i \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao l\u1edbp Nut l\u1ea1i quan tr\u1ecdng<\/h2>\n\n\n\n<p>\u0110ai \u1ed1c ph\u1ea3i \u0111\u1ee7 ch\u1eafc ch\u1eafn \u0111\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng d\u1ef1 \u0111\u1ecbnh c\u1ee7a bu l\u00f4ng. N\u1ebfu c\u1ea5p \u0111\u1ed9 \u0111ai \u1ed1c qu\u00e1 th\u1ea5p, c\u00e1c ren b\u00ean trong c\u00f3 th\u1ec3 b\u1ecb bong ra tr\u01b0\u1edbc khi bu-l\u00f4ng \u0111\u1ea1t \u0111\u1ebfn l\u1ef1c k\u1eb9p c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra ngay c\u1ea3 khi b\u1ea3n th\u00e2n bu-l\u00f4ng \u0111\u00e3 \u0111\u00fang.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn ch\u1ecbu l\u1ef1c, ng\u01b0\u1eddi mua n\u00ean xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a> v\u00e0 ch\u1ec9 \u0111\u1ecbnh bu l\u00f4ng, \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m v\u1edbi nhau.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quy t\u1eafc k\u1ebft h\u1ee3p bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c c\u01a1 b\u1ea3n<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c l\u1edbp thu\u1ed9c t\u00ednh s\u1ed1 li\u1ec7u<\/h3>\n\n\n\n<p>Trong h\u1ec7 th\u1ed1ng s\u1ed1 li\u1ec7u, c\u00e1c l\u1edbp \u0111\u1eb7c t\u00ednh c\u1ee7a bu l\u00f4ng v\u00e0 \u0111ai \u1ed1c th\u01b0\u1eddng ph\u00f9 h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng c\u01a1 h\u1ecdc. Y\u00eau c\u1ea7u ch\u00ednh x\u00e1c ph\u1ea3i tu\u00e2n theo ISO, DIN, EN, ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>L\u1edbp thu\u1ed9c t\u00ednh Bolt<\/th><th>Ph\u01b0\u01a1ng ph\u00e1p k\u1ebft h\u1ee3p h\u1ea1t th\u00f4ng th\u01b0\u1eddng<\/th><th>Ki\u1ec3m tra ng\u01b0\u1eddi mua<\/th><\/tr><\/thead><tbody><tr><td>4.8 \/ 5.8<\/td><td>\u0110ai \u1ed1c c\u00f3 \u0111\u1ed9 b\u1ec1n th\u1ea5p h\u01a1n cho l\u1eafp r\u00e1p chung<\/td><td>Ch\u1ec9 s\u1eed d\u1ee5ng kh\u00f4ng quan tr\u1ecdng<\/td><\/tr><tr><td>8.8<\/td><td>L\u1edbp 8 \u0111ai \u1ed1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/td><td>X\u00e1c nh\u1eadn cao \u0111\u1ed9 v\u00e0 k\u1ebft th\u00fac c\u1ee7a lu\u1ed3ng<\/td><\/tr><tr><td>10.9<\/td><td>L\u1edbp 10 \u0111ai \u1ed1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/td><td>Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u00f2ng \u0111\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p m\u00f4-men xo\u1eafn<\/td><\/tr><tr><td>12.9<\/td><td>Lo\u1ea1i \u0111ai \u1ed1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u<\/td><td>Y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t l\u1eafp r\u00e1p nghi\u00eam ng\u1eb7t<\/td><\/tr><tr><td>L\u1edbp \u0111\u1eb7c bi\u1ec7t<\/td><td>M\u1ed7i b\u1ea3n v\u1ebd ho\u1eb7c ti\u00eau chu\u1ea9n d\u1ef1 \u00e1n<\/td><td>\u0110\u1eebng cho r\u1eb1ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>M\u1ed9t bu-l\u00f4ng m\u1ea1nh h\u01a1n k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t \u0111ai \u1ed1c y\u1ebfu h\u01a1n kh\u00f4ng t\u1ea1o ra m\u1ed1i n\u1ed1i ch\u1eafc ch\u1eafn h\u01a1n. Vi\u1ec7c l\u1eafp r\u00e1p b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi th\u00e0nh ph\u1ea7n y\u1ebfu nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM v\u00e0 k\u1ebft n\u1ed1i d\u1ef1a tr\u00ean d\u1ef1 \u00e1n<\/h3>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi \u1ed1c v\u00edt inch v\u00e0 ASTM, vi\u1ec7c kh\u1edbp \u0111ai \u1ed1c c\u00f3 th\u1ec3 tu\u00e2n theo c\u00e1c quy t\u1eafc ASTM A563, ASTM A194, ASTM F3125, ASME ho\u1eb7c c\u00e1c quy t\u1eafc d\u00e0nh ri\u00eang cho d\u1ef1 \u00e1n.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 bao g\u1ed3m bu l\u00f4ng k\u1ebft c\u1ea5u, \u0111inh t\u00e1n thi\u1ebft b\u1ecb \u00e1p l\u1ef1c v\u00e0 c\u1ee5m l\u1ee5c gi\u00e1c n\u1eb7ng. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ng\u01b0\u1eddi mua kh\u00f4ng n\u00ean chuy\u1ec3n \u0111\u1ed5i quy t\u1eafc s\u1ed1 li\u1ec7u tr\u1ef1c ti\u1ebfp th\u00e0nh \u0111\u01a1n h\u00e0ng. Ti\u00eau chu\u1ea9n d\u1ef1 \u00e1n quy\u1ebft \u0111\u1ecbnh c\u1ea5p \u0111\u1ed9 h\u1ea1t. (ASTM)<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn c\u00f4ng nghi\u1ec7p ti\u00eau chu\u1ea9n, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 so s\u00e1nh <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/standard-fasteners\/\">\u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a> tr\u01b0\u1edbc khi chu\u1ea9n b\u1ecb RFQ.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o m\u00f4-men xo\u1eafn k\u1ebft n\u1ed1i v\u1edbi l\u1edbp Nut<\/h2>\n\n\n\n<p>M\u00f4-men xo\u1eafn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o t\u1ea3i tr\u01b0\u1edbc. T\u1ea3i tr\u01b0\u1edbc l\u00e0 l\u1ef1c k\u1eb9p gi\u1eef cho m\u1ed1i n\u1ed1i \u0111\u01b0\u1ee3c ch\u1eb7t.<\/p>\n\n\n\n<p>N\u1ebfu c\u1ea5p \u0111\u1ed9 \u0111ai \u1ed1c qu\u00e1 th\u1ea5p, ren \u0111ai \u1ed1c c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng trong qu\u00e1 tr\u00ecnh si\u1ebft ch\u1eb7t. N\u1ebfu bu-l\u00f4ng b\u1ecb v\u1eb7n qu\u00e1 m\u1ee9c, bu-l\u00f4ng c\u00f3 th\u1ec3 b\u1ecb nh\u00e3o. N\u1ebfu v\u00f2ng \u0111\u1ec7m qu\u00e1 m\u1ec1m, v\u00f2ng \u0111\u1ec7m c\u00f3 th\u1ec3 nh\u00fang v\u00e0 gi\u1ea3m t\u1ea3i tr\u01b0\u1edbc sau khi l\u1eafp r\u00e1p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec3m r\u1ee7i ro li\u00ean quan \u0111\u1ebfn m\u00f4-men xo\u1eafn<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>v\u1ea5n \u0111\u1ec1<\/th><th>K\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 x\u1ea3y ra<\/th><\/tr><\/thead><tbody><tr><td>\u0110ai \u1ed1c c\u1ea5p th\u1ea5p v\u1edbi bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao<\/td><td>T\u01b0\u1edbc s\u1ee3i \u0111ai \u1ed1c<\/td><\/tr><tr><td>M\u00f4-men xo\u1eafn qu\u00e1 m\u1ee9c<\/td><td>Bu l\u00f4ng b\u1ecb cong ho\u1eb7c h\u01b0 h\u1ecfng ren<\/td><\/tr><tr><td>M\u00f4-men xo\u1eafn qu\u00e1 \u00edt<\/td><td>N\u1edbi l\u1ecfng kh\u1edbp<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m m\u1ec1m<\/td><td>M\u1ea5t t\u1ea3i tr\u01b0\u1edbc<\/td><\/tr><tr><td>Thay \u0111\u1ed5i ma s\u00e1t l\u1edbp ph\u1ee7<\/td><td>T\u1ea3i k\u1eb9p sai \u1edf c\u00f9ng m\u1ed9t m\u00f4-men xo\u1eafn<\/td><\/tr><tr><td>Ch\u1ee7 \u0111\u1ec1 b\u1ea9n ho\u1eb7c b\u1ecb h\u01b0 h\u1ecfng<\/td><td>\u0110\u1ecdc m\u00f4-men xo\u1eafn sai<\/td><\/tr><tr><td>T\u00ecnh tr\u1ea1ng b\u00f4i tr\u01a1n sai<\/td><td>Qu\u00e1 t\u1ea3i ho\u1eb7c thi\u1ebfu t\u1ea3i<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>C\u00e1c gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c sao ch\u00e9p m\u1ed9t c\u00e1ch m\u00f9 qu\u00e1ng t\u1eeb bi\u1ec3u \u0111\u1ed3 chung. Gi\u00e1 tr\u1ecb n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9, ren, l\u1edbp ph\u1ee7, ch\u1ea5t b\u00f4i tr\u01a1n, t\u00ecnh tr\u1ea1ng v\u00f2ng \u0111\u1ec7m v\u00e0 thi\u1ebft k\u1ebf m\u1ed1i n\u1ed1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hi\u1ec7u \u1ee9ng ph\u1ee7 v\u00e0 b\u00f4i tr\u01a1n<\/h2>\n\n\n\n<p>B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n thay \u0111\u1ed5i ma s\u00e1t. C\u00e1c c\u1ee5m l\u1eafp r\u00e1p m\u1ea1 k\u1ebdm, m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng, v\u1ea3y k\u1ebdm, ph\u1ee7 s\u01a1n, oxit \u0111en v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 kh\u00f4ng si\u1ebft ch\u1eb7t theo c\u00f9ng m\u1ed9t c\u00e1ch. (PTFE)<\/p>\n\n\n\n<p>\u1ede c\u00f9ng m\u1ed9t m\u00f4-men xo\u1eafn, c\u1ee5m \u0111\u01b0\u1ee3c b\u00f4i tr\u01a1n ho\u1eb7c c\u00f3 \u0111\u1ed9 ma s\u00e1t th\u1ea5p c\u00f3 th\u1ec3 t\u1ea1o ra t\u1ea3i tr\u01b0\u1edbc cao h\u01a1n nhi\u1ec1u so v\u1edbi c\u1ee5m kh\u00f4. S\u1ee3i m\u1ea1 k\u1ebdm th\u00f4 c\u00f3 th\u1ec3 t\u1ea1o ra \u00edt t\u1ea3i tr\u01b0\u1edbc h\u01a1n do m\u1ea5t nhi\u1ec1u m\u00f4-men xo\u1eafn h\u01a1n do ma s\u00e1t.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c ph\u1ee7, h\u00e3y xem l\u1ea1i <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a> v\u00e0 x\u00e1c nh\u1eadn xem c\u00e1c gi\u00e1 tr\u1ecb m\u00f4men xo\u1eafn c\u00f3 d\u1ef1a tr\u00ean ren kh\u00f4, ren \u0111\u01b0\u1ee3c b\u00f4i d\u1ea7u, b\u00f4i s\u00e1p hay \u0111\u01b0\u1ee3c ph\u1ee7 hay kh\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1ef1a ch\u1ecdn v\u00f2ng \u0111\u1ec7m l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p an to\u00e0n<\/h2>\n\n\n\n<p>V\u00f2ng \u0111\u1ec7m kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t mi\u1ebfng \u0111\u1ec7m. N\u00f3 ki\u1ec3m so\u00e1t kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 v\u00f2ng bi v\u00e0 gi\u00fap gi\u1ea3m l\u1ef1c l\u00fan d\u01b0\u1edbi t\u1ea3i tr\u01b0\u1edbc.<\/p>\n\n\n\n<p>Bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao th\u01b0\u1eddng y\u00eau c\u1ea7u v\u00f2ng \u0111\u1ec7m c\u1ee9ng. V\u00f2ng \u0111\u1ec7m m\u1ec1m d\u01b0\u1edbi bu l\u00f4ng 10.9 ho\u1eb7c 12.9 c\u00f3 th\u1ec3 bi\u1ebfn d\u1ea1ng, g\u00e2y t\u1ed5n th\u1ea5t t\u1ea3i tr\u01b0\u1edbc sau khi l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p>Ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/fastener-type\/washers\/\">s\u1ea3n ph\u1ea9m v\u00f2ng \u0111\u1ec7m<\/a> khi kh\u1edbp bu l\u00f4ng, \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chi ti\u1ebft v\u00f2ng \u0111\u1ec7m \u0111\u1ec3 x\u00e1c nh\u1eadn<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u01b0\u1eddng k\u00ednh trong<\/li>\n\n\n\n<li>\u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i<\/li>\n\n\n\n<li>Thickness<\/li>\n\n\n\n<li>Hardness<\/li>\n\n\n\n<li>Ti\u00eau chu\u1ea9n<\/li>\n\n\n\n<li>L\u1edbp ph\u1ee7<\/li>\n\n\n\n<li>T\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t \u1ed5 tr\u1ee5c<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn c\u1ee7a ng\u01b0\u1eddi mua<\/h2>\n\n\n\n<p>Tr\u00e1nh nh\u1eefng v\u1ea5n \u0111\u1ec1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ec9 \u0111\u1ecbnh c\u1ea5p bu l\u00f4ng nh\u01b0ng kh\u00f4ng ph\u1ea3i c\u1ea5p \u0111ai \u1ed1c.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng \u0111ai \u1ed1c c\u1ea5p th\u1ea5p v\u1edbi bu l\u00f4ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao.<\/li>\n\n\n\n<li>\u00c1p d\u1ee5ng m\u1ed9t gi\u00e1 tr\u1ecb m\u00f4-men xo\u1eafn cho c\u00e1c l\u1edbp ph\u1ee7 kh\u00e1c nhau.<\/li>\n\n\n\n<li>B\u1ecf qua \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u00f2ng \u0111\u1ec7m.<\/li>\n\n\n\n<li>Tr\u1ed9n h\u1ec7 th\u1ed1ng ren s\u1ed1 li\u1ec7u v\u00e0 inch.<\/li>\n\n\n\n<li>Kh\u00f4ng ki\u1ec3m tra \u0111\u1ed9 kh\u00edt c\u1ee7a \u0111ai \u1ed1c sau khi ph\u1ee7.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 m\u00e0 kh\u00f4ng ki\u1ec3m so\u00e1t s\u1ef1 d\u1ed3n n\u00e9n.<\/li>\n\n\n\n<li>Ch\u1ea5p nh\u1eadn \u201c\u0111ai \u1ed1c kh\u1edbp\u201d kh\u00f4ng c\u00f3 ti\u00eau chu\u1ea9n.<\/li>\n\n\n\n<li>B\u1ecf qua b\u00e1o c\u00e1o t\u1ea3i tr\u1ecdng ho\u1eb7c \u0111\u1ed9 c\u1ee9ng cho c\u00e1c m\u1ed1i n\u1ed1i quan tr\u1ecdng.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c c\u1ee5m l\u1eafp r\u00e1p \u0111\u1eb7c bi\u1ec7t, ren kh\u00f4ng chu\u1ea9n ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn d\u1ef1a tr\u00ean b\u1ea3n v\u1ebd, h\u00e3y s\u1eed d\u1ee5ng <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/custom-non-standard-fasteners\/\">\u1ed1c v\u00edt phi ti\u00eau chu\u1ea9n t\u00f9y ch\u1ec9nh<\/a> v\u00e0 x\u00e1c \u0111\u1ecbnh l\u1eafp r\u00e1p r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra c\u1ea5p \u0111ai \u1ed1c v\u00e0 m\u00f4 men xo\u1eafn c\u1ee7a bu l\u00f4ng<\/h2>\n\n\n\n<p>M\u1ed9t RFQ ho\u00e0n ch\u1ec9nh n\u00ean bao g\u1ed3m:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>RFQ M\u1ee5c<\/th><th>Nh\u1eefng g\u00ec c\u1ea7n ch\u1ec9 \u0111\u1ecbnh<\/th><\/tr><\/thead><tbody><tr><td>Bu l\u00f4ng ti\u00eau chu\u1ea9n<\/td><td>DIN, ISO, ASTM, EN, ASME, ho\u1eb7c b\u1ea3n v\u1ebd<\/td><\/tr><tr><td>L\u1edbp bu l\u00f4ng<\/td><td>8.8, 10.9, 12.9, B7, A325, ho\u1eb7c c\u1ea5p \u0111\u1ed9 d\u1ef1 \u00e1n<\/td><\/tr><tr><td>L\u1edbp h\u1ea1t<\/td><td>L\u1edbp 8, 10, 12, A563, A194, ho\u1eb7c y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n<\/td><\/tr><tr><td>ch\u1ee7 \u0111\u1ec1<\/td><td>H\u1ec7 m\u00e9t, UNC, UNF, cao \u0111\u1ed9, TPI, dung sai<\/td><\/tr><tr><td>V\u00f2ng \u0111\u1ec7m<\/td><td>Lo\u1ea1i, \u0111\u1ed9 c\u1ee9ng, k\u00edch th\u01b0\u1edbc, l\u1edbp ph\u1ee7<\/td><\/tr><tr><td>K\u1ebft th\u00fac<\/td><td>K\u1ebdm, HDG, v\u1ea3y k\u1ebdm, PTFE, tr\u01a1n, kh\u00f4ng g\u1ec9<\/td><\/tr><tr><td>\u0110i\u1ec1u ki\u1ec7n m\u00f4-men xo\u1eafn<\/td><td>Gi\u00e1 tr\u1ecb kh\u00f4, b\u00f4i tr\u01a1n, tr\u00e1ng ho\u1eb7c d\u1ef1 \u00e1n<\/td><\/tr><tr><td>Documents<\/td><td>MTC, \u0111\u1ed9 c\u1ee9ng, t\u1ea3i tr\u1ecdng ki\u1ec3m ch\u1ee9ng, b\u00e1o c\u00e1o l\u1edbp ph\u1ee7<\/td><\/tr><tr><td>\u1ee8ng d\u1ee5ng<\/td><td>T\u1ea3i tr\u1ecdng t\u0129nh, \u0111\u1ed9 rung, m\u1eb7t b\u00edch, k\u1ebft c\u1ea5u, thi\u1ebft b\u1ecb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch l\u1eafp r\u00e1p \u0111\u1ea7y \u0111\u1ee7, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem l\u1ea1i to\u00e0n b\u1ed9 <a href=\"https:\/\/xzfastener.com\/vi\/home\/products\/\">s\u1ea3n ph\u1ea9m chi ti\u1ebft si\u1ebft ch\u1eb7t<\/a> ph\u1ea1m vi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1eddi khuy\u00ean cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>Vi\u1ec7c l\u1eafp r\u00e1p an to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o ph\u01b0\u01a1ng ph\u00e1p bu l\u00f4ng, \u0111ai \u1ed1c, v\u00f2ng \u0111\u1ec7m, l\u1edbp ph\u1ee7 v\u00e0 m\u00f4-men xo\u1eafn ph\u1ed1i h\u1ee3p v\u1edbi nhau. Bu l\u00f4ng ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 kh\u00f4ng \u0111\u1ee7 n\u1ebfu \u0111ai \u1ed1c y\u1ebfu, v\u00f2ng \u0111\u1ec7m m\u1ec1m ho\u1eb7c gi\u00e1 tr\u1ecb m\u00f4men xo\u1eafn kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t, h\u00e3y x\u00e1c \u0111\u1ecbnh c\u1ea5p \u0111\u1ed9 \u0111ai \u1ed1c, c\u1ea5p \u0111\u1ed9 bu l\u00f4ng, y\u00eau c\u1ea7u v\u1ec1 v\u00f2ng \u0111\u1ec7m, l\u1edbp ph\u1ee7, \u0111i\u1ec1u ki\u1ec7n b\u00f4i tr\u01a1n v\u00e0 t\u00e0i li\u1ec7u ki\u1ec3m tra. \u0110\u00f3 l\u00e0 c\u00e1ch thi\u1ebft th\u1ef1c \u0111\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng tu\u1ed9t ren, m\u1ea5t t\u1ea3i tr\u01b0\u1edbc, l\u1ecfng kh\u1edbp v\u00e0 h\u1ecfng h\u00f3c t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nut grade and bolt torque are often discussed separately. In real assembly work, they cannot be separated. A high-strength bolt does not create a safe joint by itself. The nut must carry the thread load. The washer must support the bearing surface. The tightening method must create the right preload without stripping threads, crushing washers, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[491],"class_list":["post-6709","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-torque-preload-tightening"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6709","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=6709"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6709\/revisions"}],"predecessor-version":[{"id":6710,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6709\/revisions\/6710"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=6709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=6709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=6709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}