{"id":6739,"date":"2025-08-21T12:14:00","date_gmt":"2025-08-21T04:14:00","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6739"},"modified":"2026-06-22T12:15:05","modified_gmt":"2026-06-22T04:15:05","slug":"iso-898-1-bolt-grades-mechanical-properties-and-selection-guide","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/iso-898-1-bolt-grades-mechanical-properties-and-selection-guide\/","title":{"rendered":"ISO 898-1 C\u1ea5p \u0111\u1ed9 ph\u1ee7 bu l\u00f4ng: T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn"},"content":{"rendered":"<p>ISO 898-1 l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau chu\u1ea9n quan tr\u1ecdng nh\u1ea5t \u0111\u1ed1i v\u1edbi bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n h\u1ec7 m\u00e9t \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p cacbon v\u00e0 th\u00e9p h\u1ee3p kim. \u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua, n\u00f3 gi\u00fap x\u00e1c \u0111\u1ecbnh hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a c\u00e1c lo\u1ea1i bu l\u00f4ng ph\u1ed5 bi\u1ebfn nh\u01b0 8.8, 10.9, v\u00e0 12.9.<\/p>\n\n\n\n<p>C\u1ea5p bu l\u00f4ng kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t con s\u1ed1 \u0111\u01b0\u1ee3c \u0111\u00f3ng d\u1ea5u tr\u00ean \u0111\u1ea7u. N\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n k\u00e9o, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t, \u0111\u1ed9 c\u1ee9ng, tr\u1ea1ng th\u00e1i si\u1ebft ch\u1eb7t, kh\u1edbp \u0111ai \u1ed1c, l\u1ef1a ch\u1ecdn v\u00f2ng \u0111\u1ec7m, r\u1ee7i ro l\u1edbp ph\u1ee7 v\u00e0 hi\u1ec7u su\u1ea5t hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c RFQ c\u00f4ng nghi\u1ec7p, ISO 898-1 n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t m\u00e3 tham chi\u1ebfu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What ISO 898-1 Covers<\/h2>\n\n\n\n<p>ISO 898-1 quy \u0111\u1ecbnh c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 l\u00fd cho c\u00e1c \u1ed1c v\u00edt h\u1ec7 m\u00e9t c\u00f3 ren ngo\u00e0i \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u00e9p cacbon ho\u1eb7c th\u00e9p h\u1ee3p kim. Ti\u00eau chu\u1ea9n n\u00e0y \u00e1p d\u1ee5ng cho bu l\u00f4ng, \u1ed1c v\u00edt v\u00e0 \u0111inh t\u00e1n c\u00f3 c\u00e1c l\u1edbp thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh.<\/p>\n\n\n\n<p>N\u00f3 kh\u00f4ng \u00e1p d\u1ee5ng cho \u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9. C\u00e1c lo\u1ea1i kh\u00f4ng g\u1ec9 nh\u01b0 A2-70 ho\u1eb7c A4-80 th\u01b0\u1eddng \u0111\u01b0\u1ee3c bao ph\u1ee7 b\u1edfi c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 chi ti\u1ebft si\u1ebft ch\u1eb7t kh\u00f4ng g\u1ec9 nh\u01b0 ISO 3506. Ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/fastener-material\/stainless-steel\/\">\u1ed1c v\u00edt b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9<\/a> khi c\u1ea7n c\u00f3 l\u1edbp kh\u00f4ng g\u1ec9 ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi bu l\u00f4ng th\u00e9p h\u1ec7 m\u00e9t th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u t\u1eeb <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/standard-fasteners\/\">\u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a> v\u00e0 sau \u0111\u00f3 x\u00e1c \u0111\u1ecbnh l\u1edbp thu\u1ed9c t\u00ednh ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c l\u1edbp thu\u1ed9c t\u00ednh Bolt ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o (ISO)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecdc s\u1ed1 l\u1edbp<\/h3>\n\n\n\n<p>C\u1ea5p bu l\u00f4ng h\u1ec7 m\u00e9t s\u1eed d\u1ee5ng hai s\u1ed1. S\u1ed1 \u0111\u1ea7u ti\u00ean li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n k\u00e9o danh ngh\u0129a. S\u1ed1 th\u1ee9 hai bi\u1ec3u th\u1ecb t\u1ef7 l\u1ec7 gi\u1eefa c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, l\u1edbp 8.8 c\u00f3 ngh\u0129a l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 b\u1ec1n k\u00e9o danh ngh\u0129a g\u1ea7n \u0111\u00fang: 800 MPa<\/li>\n\n\n\n<li>T\u1ef7 l\u1ec7 c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t g\u1ea7n \u0111\u00fang: 0.8<\/li>\n\n\n\n<li>C\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t g\u1ea7n \u0111\u00fang: 640 MPa<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>ISO L\u1edbp thu\u1ed9c t\u00ednh<\/th><th>X\u1ea5p x\u1ec9. \u0110\u1ed9 b\u1ec1n k\u00e9o danh ngh\u0129a<\/th><th>X\u1ea5p x\u1ec9. N\u0103ng su\u1ea5t \/ S\u1ee9c m\u1ea1nh b\u1eb1ng ch\u1ee9ng<\/th><th>S\u1eed d\u1ee5ng chung<\/th><\/tr><\/thead><tbody><tr><td>4.6<\/td><td>400 MPa<\/td><td>240 MPa<\/td><td>Ch\u1ed1t chung nh\u1eb9<\/td><\/tr><tr><td>4.8<\/td><td>400 MPa<\/td><td>320 MPa<\/td><td>T\u1ed5 h\u1ee3p t\u1ea3i th\u1ea5p<\/td><\/tr><tr><td>5.8<\/td><td>500 MPa<\/td><td>400 MPa<\/td><td>M\u00e1y m\u00f3c v\u00e0 gi\u00e1 \u0111\u1ee1 n\u00f3i chung<\/td><\/tr><tr><td>6.8<\/td><td>600 MPa<\/td><td>480 MPa<\/td><td>\u1ee8ng d\u1ee5ng trung b\u00ecnh<\/td><\/tr><tr><td>8.8<\/td><td>800 MPa<\/td><td>640 MPa<\/td><td>M\u00e1y c\u00f4ng nghi\u1ec7p, k\u1ebft c\u1ea5u th\u00e9p<\/td><\/tr><tr><td>10.9<\/td><td>1000 MPa<\/td><td>900 MPa<\/td><td>Thi\u1ebft b\u1ecb n\u1eb7ng, \u00f4 t\u00f4, kh\u1edbp ch\u1ecbu t\u1ea3i cao<\/td><\/tr><tr><td>12.9<\/td><td>1200 MPa<\/td><td>1080 MPa<\/td><td>M\u00e1y m\u00f3c ch\u1ecbu \u00e1p l\u1ef1c cao v\u00e0 c\u1ee5m l\u1eafp r\u00e1p nh\u1ecf g\u1ecdn<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>B\u1ea3ng n\u00e0y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn th\u1ef1c t\u1ebf. Vi\u1ec7c nghi\u1ec7m thu cu\u1ed1i c\u00f9ng ph\u1ea3i lu\u00f4n tu\u00e2n theo c\u00e1c y\u00eau c\u1ea7u ch\u00ednh x\u00e1c, k\u00edch th\u01b0\u1edbc s\u1ea3n ph\u1ea9m v\u00e0 b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m. (ISO 898-1)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c c\u1ea5p \u0111\u1ed9 bu l\u00f4ng ph\u1ed5 bi\u1ebfn v\u00e0 logic l\u1ef1a ch\u1ecdn<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1edbp 8.8 Bu l\u00f4ng<\/h3>\n\n\n\n<p>L\u1edbp 8.8 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p, k\u1ebft c\u1ea5u th\u00e9p, khung m\u00e1y, gi\u00e1 \u0111\u1ee1 v\u00e0 c\u00e1c c\u1ee5m ch\u1ecbu l\u1ef1c n\u00f3i chung. N\u00f3 cung c\u1ea5p s\u1ef1 c\u00e2n b\u1eb1ng m\u1ea1nh m\u1ebd gi\u1eefa hi\u1ec7u su\u1ea5t, t\u00ednh kh\u1ea3 d\u1ee5ng v\u00e0 chi ph\u00ed.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng ti\u00eau chu\u1ea9n, 8.8 l\u00e0 c\u1ea5p \u0111\u1ed9 \u0111\u1ea7u ti\u00ean m\u00e0 ng\u01b0\u1eddi mua n\u00ean \u0111\u00e1nh gi\u00e1 tr\u01b0\u1edbc khi chuy\u1ec3n sang c\u1ea5p \u0111\u1ed9 cao h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1edbp 10.9 Bu l\u00f4ng<\/h3>\n\n\n\n<p>Lo\u1ea1i 10.9 cung c\u1ea5p \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n l\u1ef1c k\u1eb9p m\u1ea1nh h\u01a1n ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i cao h\u01a1n.<\/p>\n\n\n\n<p>C\u00e1c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e1y m\u00f3c h\u1ea1ng n\u1eb7ng<\/li>\n\n\n\n<li>C\u1ee5m xe<\/li>\n\n\n\n<li>D\u1ea5u ngo\u1eb7c k\u1ebft c\u1ea5u<\/li>\n\n\n\n<li>C\u01a1 s\u1edf thi\u1ebft b\u1ecb<\/li>\n\n\n\n<li>M\u1ed1i n\u1ed1i bu l\u00f4ng ch\u1ecbu t\u1ea3i cao<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y, 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 x\u00e1c nh\u1eadn c\u1ea5p \u0111\u1ed9 \u0111ai \u1ed1c, \u0111\u1ed9 c\u1ee9ng c\u1ee7a v\u00f2ng \u0111\u1ec7m v\u00e0 ph\u01b0\u01a1ng ph\u00e1p si\u1ebft ch\u1eb7t v\u1edbi nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u1edbp 12.9 Bu l\u00f4ng<\/h3>\n\n\n\n<p>Bu l\u00f4ng lo\u1ea1i 12.9 l\u00e0 lo\u1ea1i \u1ed1c v\u00edt c\u00f3 \u0111\u1ed9 b\u1ec1n cao \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u1ee5m c\u01a1 kh\u00ed c\u00f3 y\u00eau c\u1ea7u kh\u1eaft khe. Ch\u00fang c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao nh\u01b0ng y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n.<\/p>\n\n\n\n<p>H\u1ecd \u00edt tha th\u1ee9 h\u01a1n khi c\u00e0i \u0111\u1eb7t k\u00e9m. Si\u1ebft qu\u00e1 ch\u1eb7t, l\u1edbp ph\u1ee7 sai, v\u00f2ng \u0111\u1ec7m m\u1ec1m ho\u1eb7c nguy c\u01a1 b\u1ecb gi\u00f2n do hydro c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng.<\/p>\n\n\n\n<p>Ch\u1ec9 s\u1eed d\u1ee5ng l\u1edbp 12.9 khi thi\u1ebft k\u1ebf y\u00eau c\u1ea7u v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng g\u00ec ng\u01b0\u1eddi mua n\u00ean ki\u1ec3m tra ngo\u00e0i l\u1edbp Bolt<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">K\u1ebft h\u1ee3p \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m<\/h3>\n\n\n\n<p>Bu l\u00f4ng ch\u1ea5t l\u01b0\u1ee3ng cao ph\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp \u0111\u00fang \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m. Bu l\u00f4ng lo\u1ea1i c\u00f3 \u0111ai \u1ed1c c\u1ea5p th\u1ea5p kh\u00f4ng ph\u1ea3i l\u00e0 t\u1ed5 h\u1ee3p c\u00f3 \u0111\u1ed9 b\u1ec1n cao an to\u00e0n. (10.9)<\/p>\n\n\n\n<p>Ki\u1ec3m tra:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>L\u1edbp thu\u1ed9c t\u00ednh h\u1ea1t<\/li>\n\n\n\n<li>\u0110\u1ed9 c\u1ee9ng c\u1ee7a v\u00f2ng \u0111\u1ec7m<\/li>\n\n\n\n<li>Cao \u0111\u1ed9 ren<\/li>\n\n\n\n<li>Chi\u1ec1u d\u00e0i ren to\u00e0n b\u1ed9 ho\u1eb7c m\u1ed9t ph\u1ea7n<\/li>\n\n\n\n<li>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u t\u1ea3i b\u1eb1ng ch\u1ee9ng ho\u1eb7c b\u00e1o c\u00e1o th\u1eed nghi\u1ec7m c\u01a1 h\u1ecdc<\/li>\n<\/ol>\n\n\n\n<p>\u0110\u1ec3 k\u1ebft h\u1ee3p v\u00f2ng \u0111\u1ec7m, 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>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u1ee7i ro v\u1ec1 l\u1edbp ph\u1ee7 v\u00e0 s\u1ef1 gi\u00f2n do hydro<\/h3>\n\n\n\n<p>B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, \u0111\u1ed9 kh\u00edt c\u1ee7a ren v\u00e0 kh\u1ea3 n\u0103ng si\u1ebft ch\u1eb7t. M\u1ea1 k\u1ebdm, m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng, v\u1ea3y k\u1ebdm, oxit \u0111en v\u00e0 l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau. (PTFE)<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi bu l\u00f4ng lo\u1ea1i 10.9 v\u00e0 12.9, m\u1ea1 \u0111i\u1ec7n c\u00f3 th\u1ec3 g\u00e2y ra nguy c\u01a1 gi\u00f2n do hydro n\u1ebfu qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. H\u1ed3 s\u01a1 n\u01b0\u1edbng v\u00e0 b\u00e1o c\u00e1o l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u.<\/p>\n\n\n\n<p>\u0110\u1ec3 l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7, h\u00e3y xem x\u00e9t <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 d\u1ecbch v\u1ee5<\/h3>\n\n\n\n<p>C\u00e1c \u0111\u1eb7c t\u00ednh ISO 898-1 \u0111\u01b0\u1ee3c d\u1ef1a tr\u00ean c\u00e1c \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m ti\u00eau chu\u1ea9n. N\u1ebfu bu l\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 cao, nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, h\u00e0ng h\u1ea3i, h\u00f3a ch\u1ea5t ho\u1eb7c rung \u0111\u1ed9ng n\u1eb7ng th\u00ec c\u1ea7n ph\u1ea3i xem x\u00e9t th\u00eam.<\/p>\n\n\n\n<p>Ch\u1ec9 c\u1ea5p \u0111\u1ed9 bu l\u00f4ng kh\u00f4ng \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u00f9 h\u1ee3p cho m\u1ecdi \u0111i\u1ec1u ki\u1ec7n s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Danh s\u00e1ch ki\u1ec3m tra cho ISO 898-1 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>Ti\u00eau chu\u1ea9n<\/td><td>ISO 898-1, c\u1ed9ng v\u1edbi ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m nh\u01b0 ISO 4014 ho\u1eb7c ISO 4017<\/td><\/tr><tr><td>L\u1edbp thu\u1ed9c t\u00ednh<\/td><td>4.8, 8.8, 10.9, 12.9, ho\u1eb7c c\u1ea5p \u0111\u1ed9 d\u1ef1 \u00e1n<\/td><\/tr><tr><td>K\u00edch th\u01b0\u1edbc<\/td><td>\u0110\u01b0\u1eddng k\u00ednh, chi\u1ec1u d\u00e0i, b\u01b0\u1edbc, chi\u1ec1u d\u00e0i ren<\/td><\/tr><tr><td>V\u1eadt li\u1ec7u<\/td><td>Y\u00eau c\u1ea7u th\u00e9p cacbon ho\u1eb7c th\u00e9p h\u1ee3p kim<\/td><\/tr><tr><td>K\u1ebft th\u00fac<\/td><td>\u0110\u1ed3ng b\u1eb1ng, \u0111en, k\u1ebdm, HDG, v\u1ea3y k\u1ebdm, PTFE<\/td><\/tr><tr><td>B\u1ed9 ph\u1eadn ph\u00f9 h\u1ee3p<\/td><td>Lo\u1ea1i \u0111ai \u1ed1c v\u00e0 lo\u1ea1i v\u00f2ng \u0111\u1ec7m<\/td><\/tr><tr><td>Ki\u1ec3m tra<\/td><td>B\u00e1o c\u00e1o \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n k\u00e9o, t\u1ea3i tr\u1ecdng b\u1eb1ng ch\u1ee9ng, l\u1edbp ph\u1ee7<\/td><\/tr><tr><td>\u1ee8ng d\u1ee5ng<\/td><td>M\u00e1y m\u00f3c, k\u1ebft c\u1ea5u, xe c\u1ed9, m\u1eb7t b\u00edch, thi\u1ebft b\u1ecb<\/td><\/tr><tr><td>\u0110\u00f3ng g\u00f3i<\/td><td>Nh\u00e3n, s\u1ed1 l\u00f4, truy xu\u1ea5t ngu\u1ed3n g\u1ed1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c chi\u1ec1u d\u00e0i \u0111\u1eb7c bi\u1ec7t, ren b\u1ea5t th\u01b0\u1eddng ho\u1eb7c bu l\u00f4ng 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 cung c\u1ea5p b\u1ea3n v\u1ebd tr\u01b0\u1edbc khi b\u00e1o gi\u00e1. \u0110\u1ec3 t\u00ecm ngu\u1ed3n cung \u1ee9ng r\u1ed9ng h\u01a1n, h\u00e3y 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>C\u00e1c c\u1ea5p \u0111\u1ed9 bu l\u00f4ng gi\u00fap ng\u01b0\u1eddi mua so s\u00e1nh hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc, nh\u01b0ng vi\u1ec7c l\u1ef1a ch\u1ecdn c\u1ea5p \u0111\u1ed9 kh\u00f4ng n\u00ean d\u1eebng l\u1ea1i \u1edf \u0111\u1ed9 b\u1ec1n k\u00e9o. Bu l\u00f4ng ch\u00ednh x\u00e1c c\u0169ng ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi \u0111ai \u1ed1c, v\u00f2ng \u0111\u1ec7m, l\u1edbp ph\u1ee7, t\u00ecnh tr\u1ea1ng m\u00f4-men xo\u1eafn, m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c v\u00e0 y\u00eau c\u1ea7u ki\u1ec3m tra. (ISO 898-1)<\/p>\n\n\n\n<p>\u0110\u1ec3 mua h\u00e0ng an to\u00e0n, h\u00e3y x\u00e1c \u0111\u1ecbnh lo\u1ea1i thu\u1ed9c t\u00ednh, ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m, k\u00edch th\u01b0\u1edbc, v\u1eadt li\u1ec7u, l\u1edbp ho\u00e0n thi\u1ec7n, c\u00e1c b\u1ed9 ph\u1eadn ph\u00f9 h\u1ee3p v\u00e0 t\u00e0i li\u1ec7u ki\u1ec3m tra tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t. \u0110\u00f3 l\u00e0 c\u00e1ch thi\u1ebft th\u1ef1c nh\u1ea5t \u0111\u1ec3 tr\u00e1nh giao h\u00e0ng sai lo\u1ea1i, l\u1ed7i l\u1eafp r\u00e1p v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 t\u1ed1n k\u00e9m t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>","protected":false},"excerpt":{"rendered":"<p>ISO 898-1 is one of the most important standards for metric bolts, screws, and studs made from carbon steel and alloy steel. For buyers, it helps define the mechanical performance behind common bolt grades such as 8.8, 10.9, and 12.9. A bolt grade is not just a number stamped on the head. It affects tensile [&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":[504],"class_list":["post-6739","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-strength-grades-mechanical-properties"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6739","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=6739"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6739\/revisions"}],"predecessor-version":[{"id":6740,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/6739\/revisions\/6740"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=6739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=6739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=6739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}