{"id":3475,"date":"2026-04-14T14:57:34","date_gmt":"2026-04-14T06:57:34","guid":{"rendered":"https:\/\/xzfastener.com\/?p=3475"},"modified":"2026-05-06T11:56:16","modified_gmt":"2026-05-06T03:56:16","slug":"how-to-read-fastener-standards-din-iso-and-astm-explained","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/how-to-read-fastener-standards-din-iso-and-astm-explained\/","title":{"rendered":"C\u00e1ch \u0111\u1ecdc c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a chi ti\u1ebft si\u1ebft ch\u1eb7t: DIN, ISO, v\u00e0 ASTM Gi\u1ea3i th\u00edch"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Introduction<\/h1>\n\n\n\n<p>N\u1ebfu b\u1ea1n l\u00e0m vi\u1ec7c trong l\u0129nh v\u1ef1c thu mua c\u00f4ng nghi\u1ec7p ho\u1eb7c k\u1ef9 thu\u1eadt, b\u1ea1n g\u1ea7n nh\u01b0 ch\u1eafc ch\u1eafn \u0111\u00e3 th\u1ea5y c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt nh\u01b0 <strong>DIN 933<\/strong>, <strong>ISO 4017<\/strong>ho\u1eb7c <strong>ASTM A325<\/strong> tr\u00ean b\u1ea3n v\u1ebd, RFQ ho\u1eb7c \u0111\u01a1n \u0111\u1eb7t h\u00e0ng.<\/p>\n\n\n\n<p>Tho\u1ea1t nh\u00ecn ch\u00fang tr\u00f4ng gi\u1ed1ng nh\u01b0 nh\u1eefng con s\u1ed1 s\u1ea3n ph\u1ea9m \u0111\u01a1n gi\u1ea3n. Trong th\u1ef1c t\u1ebf, h\u1ecd x\u00e1c \u0111\u1ecbnh <strong>y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt quan tr\u1ecdng<\/strong>\u2014bao g\u1ed3m h\u00ecnh d\u1ea1ng bu l\u00f4ng, ti\u00eau chu\u1ea9n ren, t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u v\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1eed.<\/p>\n\n\n\n<p>Hi\u1ec3u sai c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 m\u1ed9t l\u1ed7i t\u00ecm ngu\u1ed3n cung \u1ee9ng ph\u1ed5 bi\u1ebfn. V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ordering <strong>DIN bu l\u00f4ng cho d\u1ef1 \u00e1n c\u1ea7n ASTM bu l\u00f4ng k\u1ebft c\u1ea5u<\/strong><\/li>\n\n\n\n<li>assuming <strong>C\u00e1c ch\u1ed1t ISO v\u00e0 DIN gi\u1ed1ng h\u1ec7t nhau<\/strong><\/li>\n\n\n\n<li>ignoring <strong>c\u1ea5p \u0111\u1ed9 b\u1ec1n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ri\u00eang bi\u1ec7t v\u1edbi ti\u00eau chu\u1ea9n k\u00edch th\u01b0\u1edbc<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng sai l\u1ea7m n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn <strong>s\u1ef1 c\u1ed1 l\u1eafp \u0111\u1eb7t, l\u1ed7i ki\u1ec3m tra ho\u1eb7c v\u1ea5n \u0111\u1ec1 tu\u00e2n th\u1ee7 trong c\u00e1c d\u1ef1 \u00e1n x\u00e2y d\u1ef1ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/strong>.<\/p>\n\n\n\n<p>H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch \u0111\u1ecdc ch\u00ednh x\u00e1c <strong>DIN, ISO, v\u00e0 ASTM ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t<\/strong>, ch\u00fang kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o v\u00e0 nh\u1eefng ng\u01b0\u1eddi mua c\u00f3 kinh nghi\u1ec7m di\u1ec5n gi\u1ea3i ch\u00fang nh\u01b0 th\u1ebf n\u00e0o khi t\u00ecm ngu\u1ed3n cung \u1ee9ng \u1ed1c v\u00edt c\u00f4ng nghi\u1ec7p tr\u00ean to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">N\u1ed9i dung ch\u00ednh<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t th\u1ef1c s\u1ef1 x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u g\u00ec<\/h2>\n\n\n\n<p>Ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng \u0111\u1eb7t t\u00ean. N\u00f3 \u0111\u1ecbnh ngh\u0129a <strong>c\u00e1c quy t\u1eafc k\u1ef9 thu\u1eadt m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i tu\u00e2n theo<\/strong>.<\/p>\n\n\n\n<p>T\u00f9y thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K\u00edch th\u01b0\u1edbc \u0111\u1ea7u<\/li>\n\n\n\n<li>Lo\u1ea1i ch\u1ee7 \u0111\u1ec1 v\u00e0 cao \u0111\u1ed9<\/li>\n\n\n\n<li>Chi\u1ec1u d\u00e0i s\u1ee3i<\/li>\n\n\n\n<li>Gi\u1edbi h\u1ea1n dung sai<\/li>\n\n\n\n<li>Th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u<\/li>\n\n\n\n<li>T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc (\u0111\u1ed9 b\u1ec1n k\u00e9o, c\u01b0\u1eddng \u0111\u1ed9 n\u0103ng su\u1ea5t)<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>Th\u1ee7 t\u1ee5c ki\u1ec3m tra<\/li>\n<\/ul>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<p><strong>ISO 4017<\/strong> \u0111\u1ecbnh ngh\u0129a <strong>k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t bu l\u00f4ng l\u1ee5c gi\u00e1c c\u00f3 ren \u0111\u1ea7y \u0111\u1ee7<\/strong>, nh\u01b0ng n\u00f3 c\u00f3 <strong>kh\u00f4ng x\u00e1c \u0111\u1ecbnh c\u1ea5p \u0111\u1ed9 s\u1ee9c m\u1ea1nh<\/strong>.<\/p>\n\n\n\n<p>C\u01b0\u1eddng \u0111\u1ed9 bu l\u00f4ng ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ri\u00eang, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISO 4017 <strong>C\u1ea5p 8.8<\/strong><\/li>\n\n\n\n<li>ISO 4017 <strong>C\u1ea5p 10.9<\/strong><\/li>\n<\/ul>\n\n\n\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y r\u1ea5t quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh mua s\u1eafm v\u00ec <strong>ri\u00eang m\u1ed9t ti\u00eau chu\u1ea9n bu l\u00f4ng hi\u1ebfm khi x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ho\u00e0n ch\u1ec9nh c\u1ee7a s\u1ea3n ph\u1ea9m<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Ba h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t ch\u00ednh<\/h2>\n\n\n\n<p>Trong chu\u1ed7i cung \u1ee9ng to\u00e0n c\u1ea7u, h\u1ea7u h\u1ebft c\u00e1c chi ti\u1ebft si\u1ebft ch\u1eb7t \u0111\u1ec1u tham chi\u1ebfu \u0111\u1ebfn m\u1ed9t trong ba t\u1ed5 ch\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DIN \u2013 Ti\u00eau chu\u1ea9n C\u00f4ng nghi\u1ec7p \u0110\u1ee9c<\/h3>\n\n\n\n<p>DIN (Deutsches Institut f\u00fcr Normung) c\u00f3 ngu\u1ed3n g\u1ed1c \u1edf \u0110\u1ee9c v\u00e0 \u0111\u00e3 \u0111\u1ecbnh h\u00ecnh ng\u00e0nh c\u00f4ng nghi\u1ec7p chi ti\u1ebft si\u1ebft ch\u1eb7t Ch\u00e2u \u00c2u theo l\u1ecbch s\u1eed.<\/p>\n\n\n\n<p>Nhi\u1ec1u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt chi ti\u1ebft si\u1ebft ch\u1eb7t c\u1ed5 \u0111i\u1ec3n \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo DIN.<\/p>\n\n\n\n<p>C\u00e1c v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>DIN Ti\u00eau chu\u1ea9n<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>DIN 933<\/td><td>Bu l\u00f4ng l\u1ee5c gi\u00e1c, ren \u0111\u1ea7y \u0111\u1ee7<\/td><\/tr><tr><td>DIN 931<\/td><td>Bu l\u00f4ng l\u1ee5c gi\u00e1c, c\u00f3 ren m\u1ed9t ph\u1ea7n<\/td><\/tr><tr><td>DIN 912<\/td><td>V\u00edt n\u1eafp \u0111\u1ea7u \u1ed5 c\u1eafm<\/td><\/tr><tr><td>DIN 125<\/td><td>V\u00f2ng \u0111\u1ec7m ph\u1eb3ng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>M\u1eb7c d\u00f9 nhi\u1ec1u ti\u00eau chu\u1ea9n DIN \u0111\u00e3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng ISO t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, <strong>C\u00e1c s\u1ed1 DIN v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c b\u1ea3n v\u1ebd m\u00e1y m\u00f3c v\u00e0 t\u00e0i li\u1ec7u v\u1ec1 ph\u1ee5 t\u00f9ng thay th\u1ebf<\/strong>.<\/p>\n\n\n\n<p>C\u00e1c ng\u00e0nh v\u1eabn s\u1eed d\u1ee5ng DIN th\u01b0\u1eddng xuy\u00ean bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb c\u01a1 kh\u00ed<\/li>\n\n\n\n<li>Nh\u00e0 cung c\u1ea5p \u00f4 t\u00f4 ch\u00e2u \u00c2u<\/li>\n\n\n\n<li>ph\u1ee5 t\u00f9ng m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p<\/li>\n<\/ul>\n\n\n\n<p>Trong th\u1ef1c t\u1ebf, nhi\u1ec1u k\u1ef9 s\u01b0 v\u1eabn g\u1ecdi bu l\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 <strong>\u201cDIN933 bu l\u00f4ng\u201d<\/strong>, ngay c\u1ea3 khi nh\u00e0 cung c\u1ea5p s\u1ea3n xu\u1ea5t ch\u00fang theo ISO.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">ISO \u2013 Ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t qu\u1ed1c t\u1ebf<\/h3>\n\n\n\n<p>ISO (T\u1ed5 ch\u1ee9c Ti\u00eau chu\u1ea9n h\u00f3a Qu\u1ed1c t\u1ebf) \u0111\u00e3 t\u1ea1o ra c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ec3 <strong>h\u00e0i h\u00f2a c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt tr\u00ean to\u00e0n c\u1ea7u<\/strong>.<\/p>\n\n\n\n<p>H\u1ea7u h\u1ebft c\u00e1c d\u1ef1 \u00e1n qu\u1ed1c t\u1ebf hi\u1ec7n \u0111\u1ea1i hi\u1ec7n nay \u0111\u1ec1u tham chi\u1ebfu \u0111\u1ebfn ISO h\u01a1n l\u00e0 DIN.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>ISO Ti\u00eau chu\u1ea9n<\/th><th>T\u01b0\u01a1ng \u0111\u01b0\u01a1ng (DIN)<\/th><\/tr><\/thead><tbody><tr><td>ISO 4017<\/td><td>DIN 933<\/td><\/tr><tr><td>ISO 4014<\/td><td>DIN 931<\/td><\/tr><tr><td>ISO 4762<\/td><td>DIN 912<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Tuy nhi\u00ean, \u201ct\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 gi\u1ed1ng h\u1ec7t nhau.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5, c\u00e1c k\u1ef9 s\u01b0 \u0111\u00f4i khi nh\u1eadn th\u1ea5y <strong>s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 chi\u1ec1u nh\u1ecf<\/strong> ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>chi\u1ec1u cao \u0111\u1ea7u h\u01a1i kh\u00e1c nhau<\/li>\n\n\n\n<li>\u0111i\u1ec1u ch\u1ec9nh dung sai nh\u1ecf<\/li>\n\n\n\n<li>quy t\u1eafc \u0111\u1ed9 d\u00e0i ch\u1ee7 \u0111\u1ec1 \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y th\u01b0\u1eddng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c c\u00e0i \u0111\u1eb7t nh\u01b0ng <strong>c\u00f3 th\u1ec3 quan tr\u1ecdng trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p ch\u00ednh x\u00e1c ho\u1eb7c khi khe h\u1edf h\u1eb9p<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM \u2013 Ti\u00eau chu\u1ea9n Hi\u1ec7u su\u1ea5t V\u1eadt li\u1ec7u v\u00e0 K\u1ebft c\u1ea5u<\/h3>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong (ASTM) <strong>Ng\u00e0nh x\u00e2y d\u1ef1ng v\u00e0 n\u0103ng l\u01b0\u1ee3ng B\u1eafc M\u1ef9<\/strong>.<\/p>\n\n\n\n<p>Kh\u00f4ng gi\u1ed1ng nh\u01b0 DIN v\u00e0 ISO, c\u00e1c ti\u00eau chu\u1ea9n ASTM th\u01b0\u1eddng t\u1eadp trung v\u00e0o <strong>\u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u h\u01a1n l\u00e0 h\u00ecnh d\u1ea1ng bu l\u00f4ng<\/strong>.<\/p>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 chi ti\u1ebft si\u1ebft ch\u1eb7t ASTM \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>ASTM Ti\u00eau chu\u1ea9n<\/th><th>\u1ee8ng d\u1ee5ng<\/th><\/tr><\/thead><tbody><tr><td>ASTM A325<\/td><td>Bu l\u00f4ng k\u1ebft c\u1ea5u th\u00e9p<\/td><\/tr><tr><td>ASTM A490<\/td><td>Bu l\u00f4ng k\u1ebft c\u1ea5u c\u01b0\u1eddng \u0111\u1ed9 cao<\/td><\/tr><tr><td>ASTM A193 B7<\/td><td>Bu l\u00f4ng th\u00e9p h\u1ee3p kim nhi\u1ec7t \u0111\u1ed9 cao<\/td><\/tr><tr><td>ASTM A307<\/td><td>Bu l\u00f4ng th\u00e9p carbon th\u00f4ng th\u01b0\u1eddng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt bu l\u00f4ng k\u1ebft c\u1ea5u c\u00f3 th\u1ec3 \u0111\u1ecdc:<\/p>\n\n\n\n<p><strong>ASTM A325 Lo\u1ea1i 1, 3\/4&#8243; \u0111\u01b0\u1eddng k\u00ednh<\/strong><\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y cho ch\u00fang ta bi\u1ebft:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>v\u1eadt li\u1ec7u bu l\u00f4ng v\u00e0 l\u1edbp s\u1ee9c m\u1ea1nh<\/li>\n\n\n\n<li>y\u00eau c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t<\/li>\n\n\n\n<li>y\u00eau c\u1ea7u ki\u1ec3m tra<\/li>\n<\/ul>\n\n\n\n<p>Nh\u01b0ng n\u00f3 <strong>kh\u00f4ng x\u00e1c \u0111\u1ecbnh h\u00ecnh d\u1ea1ng \u0111\u1ea7u<\/strong>, th\u01b0\u1eddng theo sau <strong>ASME ho\u1eb7c ANSI ti\u00eau chu\u1ea9n chi\u1ec1u<\/strong>.<\/p>\n\n\n\n<p>\u0110\u00e2y ch\u00ednh l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n (ASTM) <strong>c\u00f9ng v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c trong t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao m\u1ed9t ch\u1ed1t \u0111\u01a1n c\u00f3 th\u1ec3 tham chi\u1ebfu nhi\u1ec1u ti\u00eau chu\u1ea9n<\/h2>\n\n\n\n<p>Trong nhi\u1ec1u d\u1ef1 \u00e1n c\u00f4ng nghi\u1ec7p, <strong>m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt bu l\u00f4ng k\u1ebft h\u1ee3p m\u1ed9t s\u1ed1 ti\u00eau chu\u1ea9n<\/strong>.<\/p>\n\n\n\n<p>M\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh c\u00f3 th\u1ec3 tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y:<\/p>\n\n\n\n<p><strong>ISO 4017 \u2013 M12 \u2013 C\u1ea5p 10.9 \u2013 M\u1ea1 k\u1ebdm<\/strong><\/p>\n\n\n\n<p>\u0110i\u1ec1u n\u00e0y bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ISO 4017 \u2192 k\u00edch th\u01b0\u1edbc bu l\u00f4ng<\/li>\n\n\n\n<li>M12 \u2192 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a<\/li>\n\n\n\n<li>C\u1ea5p 10.9 \u2192 h\u1ea1ng s\u1ee9c m\u1ea1nh<\/li>\n\n\n\n<li>M\u1ea1 k\u1ebdm \u2192 ch\u1ed1ng \u0103n m\u00f2n<\/li>\n<\/ul>\n\n\n\n<p>Trong c\u00e1c d\u1ef1 \u00e1n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a M\u1ef9, c\u1ea5u tr\u00fac c\u00f3 th\u1ec3 tr\u00f4ng kh\u00e1c:<\/p>\n\n\n\n<p><strong>ASTM A325 \u2013 3\/4&#8243; \u2013 M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/strong><\/p>\n\n\n\n<p>\u0110\u00e2y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ASTM x\u00e1c \u0111\u1ecbnh <strong>s\u1ee9c m\u1ea1nh v\u1eadt ch\u1ea5t<\/strong><\/li>\n\n\n\n<li>ASME ti\u00eau chu\u1ea9n x\u00e1c \u0111\u1ecbnh <strong>dimensions<\/strong><\/li>\n\n\n\n<li>\u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt l\u1edbp ph\u1ee7 x\u00e1c \u0111\u1ecbnh <strong>b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Hi\u1ec3u r\u00f5 \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt theo l\u1edbp n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 mua s\u1eafm ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">DIN vs ISO vs ASTM: Nh\u1eefng kh\u00e1c bi\u1ec7t ch\u00ednh m\u00e0 ng\u01b0\u1eddi mua n\u00ean hi\u1ec3u<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. H\u1ec7 th\u1ed1ng s\u1ed1 li\u1ec7u v\u00e0 h\u1ec7 th\u1ed1ng Imperial<\/h3>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n DIN v\u00e0 ISO ch\u1ee7 y\u1ebfu l\u00e0 <strong>th\u01b0\u1edbc \u0111o<\/strong>.<\/p>\n\n\n\n<p>K\u00edch th\u01b0\u1edbc s\u1ed1 li\u1ec7u ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M6<\/li>\n\n\n\n<li>M8<\/li>\n\n\n\n<li>M10<\/li>\n\n\n\n<li>M12<\/li>\n\n\n\n<li>M16<\/li>\n<\/ul>\n\n\n\n<p>ASTM \u1ed1c v\u00edt th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng <strong>k\u00edch c\u1ee1 \u0111\u1ebf qu\u1ed1c<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1\/2&#8243;<\/li>\n\n\n\n<li>5\/8&#8243;<\/li>\n\n\n\n<li>3\/4&#8243;<\/li>\n\n\n\n<li>1&#8243;<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1eb7t h\u00e0ng sai h\u1ec7 th\u1ed1ng lu\u1ed3ng l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ed7i t\u00ecm ngu\u1ed3n cung \u1ee9ng th\u01b0\u1eddng g\u1eb7p nh\u1ea5t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. T\u1eadp trung v\u00e0o chi\u1ec1u v\u00e0 ch\u1ea5t li\u1ec7u<\/h3>\n\n\n\n<p>M\u1ed9t \u0111i\u1ec3m kh\u00e1c bi\u1ec7t ch\u00ednh l\u00e0 m\u1ee5c \u0111\u00edch c\u1ee7a ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Ti\u00eau chu\u1ea9n<\/th><th>Tr\u1ecdng t\u00e2m ch\u00ednh<\/th><\/tr><\/thead><tbody><tr><td>DIN<\/td><td>H\u00ecnh h\u1ecdc s\u1ea3n ph\u1ea9m<\/td><\/tr><tr><td>ISO<\/td><td>Ti\u00eau chu\u1ea9n chi\u1ec1u to\u00e0n c\u1ea7u<\/td><\/tr><tr><td>ASTM<\/td><td>Ch\u1ea5t li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>V\u00ec \u0111i\u1ec1u n\u00e0y, <strong>ISO v\u00e0 ASTM th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau<\/strong> ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn thay th\u1ebf.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. M\u00f4i tr\u01b0\u1eddng \u1ee9ng d\u1ee5ng<\/h3>\n\n\n\n<p>C\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau d\u1ef1a v\u00e0o c\u00e1c ti\u00eau chu\u1ea9n kh\u00e1c nhau.<\/p>\n\n\n\n<p>C\u00e1c m\u1eabu \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<p>Thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p Ch\u00e2u \u00c2u<br>\u2192 DIN \/ ISO<\/p>\n\n\n\n<p>Xu\u1ea5t kh\u1ea9u m\u00e1y m\u00f3c to\u00e0n c\u1ea7u<br>\u2192 ISO<\/p>\n\n\n\n<p>X\u00e2y d\u1ef1ng v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a Hoa K\u1ef3<br>\u2192 ASTM<\/p>\n\n\n\n<p>D\u1ef1 \u00e1n d\u1ea7u kh\u00ed<br>\u2192 ASTM + API th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p>\n\n\n\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c b\u1ed1i c\u1ea3nh n\u00e0y s\u1ebd gi\u00fap ng\u01b0\u1eddi mua nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh li\u1ec7u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u00f3 ph\u00f9 h\u1ee3p v\u1edbi d\u1ef1 \u00e1n hay kh\u00f4ng.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">M\u1ed9t v\u00ed d\u1ee5 th\u1ef1c t\u1ebf: \u0110\u1ecdc th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a chi ti\u1ebft si\u1ebft ch\u1eb7t th\u1ef1c t\u1ebf<\/h2>\n\n\n\n<p>H\u00e3y xem x\u00e9t \u0111\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt sau: (RFQ)<\/p>\n\n\n\n<p><strong>Bu l\u00f4ng l\u1ee5c gi\u00e1c \u2013 ISO 4017 \u2013 M16 \u00d7 80 \u2013 C\u1ea5p 10.9 \u2013 Oxit \u0111en<\/strong><\/p>\n\n\n\n<p>Ph\u00e1 v\u1ee1 \u0111i\u1ec1u n\u00e0y:<\/p>\n\n\n\n<p>ISO 4017<br>\u2192 lo\u1ea1i bu l\u00f4ng (bu l\u00f4ng l\u1ee5c gi\u00e1c c\u00f3 ren ho\u00e0n to\u00e0n)<\/p>\n\n\n\n<p>M16<br>\u2192 \u0111\u01b0\u1eddng k\u00ednh bu l\u00f4ng<\/p>\n\n\n\n<p>80<br>\u2192 chi\u1ec1u d\u00e0i bu l\u00f4ng<\/p>\n\n\n\n<p>C\u1ea5p 10.9<br>\u2192 \u0111\u1ed9 b\u1ec1n k\u00e9o cao (~1040 \u0111\u1ed9 b\u1ec1n k\u00e9o MPa) (1040 MPa)<\/p>\n\n\n\n<p>Oxit \u0111en<br>\u2192 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n nh\u1eb9, ch\u1ee7 y\u1ebfu d\u00e0nh cho thi\u1ebft b\u1ecb trong nh\u00e0<\/p>\n\n\n\n<p>T\u1eeb g\u00f3c \u0111\u1ed9 k\u1ef9 thu\u1eadt, \u0111i\u1ec1u n\u00e0y cho ch\u00fang ta bi\u1ebft bu-l\u00f4ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng cho <strong>l\u1eafp r\u00e1p m\u00e1y m\u00f3c ho\u1eb7c thi\u1ebft b\u1ecb thay v\u00ec k\u1ebft c\u1ea5u th\u00e9p<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn m\u00e0 ng\u01b0\u1eddi mua m\u1eafc ph\u1ea3i khi \u0111\u1ecdc ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3 s\u1eed DIN v\u00e0 ISO lu\u00f4n gi\u1ed1ng nhau<\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 nhi\u1ec1u ti\u00eau chu\u1ea9n DIN \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh ISO, nh\u01b0ng ch\u00fang v\u1eabn <strong>kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng gi\u1ed1ng nhau v\u1ec1 chi\u1ec1u<\/strong>.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c t\u1ed5 h\u1ee3p c\u00f4ng nghi\u1ec7p, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c, nh\u01b0ng <strong>thi\u1ebft b\u1ecb c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao c\u00f3 th\u1ec3 y\u00eau c\u1ea7u tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ecf qua c\u00e1c l\u1edbp s\u1ee9c m\u1ea1nh<\/h3>\n\n\n\n<p>\u0110\u1eb7t h\u00e0ng:<\/p>\n\n\n\n<p><strong>ISO 4017 bu l\u00f4ng<\/strong><\/p>\n\n\n\n<p>m\u00e0 kh\u00f4ng ch\u1ec9 \u0111\u1ecbnh \u0111i\u1ec3m c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c nh\u1eadn \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea5p 4.8<\/li>\n\n\n\n<li>C\u1ea5p 8.8<\/li>\n\n\n\n<li>C\u1ea5p 10.9<\/li>\n<\/ul>\n\n\n\n<p>Nh\u1eefng bu l\u00f4ng n\u00e0y c\u00f3 <strong>kh\u1ea3 n\u0103ng t\u1ea3i ho\u00e0n to\u00e0n kh\u00e1c nhau<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Tr\u1ed9n bu l\u00f4ng k\u1ebft c\u1ea5u v\u00e0 phi k\u1ebft c\u1ea5u<\/h3>\n\n\n\n<p>M\u1ed9t sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p trong t\u00ecm ngu\u1ed3n cung \u1ee9ng x\u00e2y d\u1ef1ng l\u00e0 thay th\u1ebf <strong>ISO bu l\u00f4ng cho ASTM bu l\u00f4ng k\u1ebft c\u1ea5u<\/strong>.<\/p>\n\n\n\n<p>Bu l\u00f4ng k\u1ebft c\u1ea5u nh\u01b0 ASTM A325 c\u00f3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/li>\n\n\n\n<li>y\u00eau c\u1ea7u x\u1eed l\u00fd nhi\u1ec7t c\u1ee5 th\u1ec3<\/li>\n\n\n\n<li>ti\u00eau chu\u1ea9n ki\u1ec3m tra x\u00e1c \u0111\u1ecbnh<\/li>\n<\/ul>\n\n\n\n<p>Thay v\u00e0o \u0111\u00f3, vi\u1ec7c s\u1eed d\u1ee5ng bu l\u00f4ng c\u00f3 m\u1ee5c \u0111\u00edch chung c\u00f3 th\u1ec3 vi ph\u1ea1m c\u00e1c quy t\u1eafc c\u1ea5u tr\u00fac.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra mua s\u1eafm cho c\u00e1c ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t<\/h2>\n\n\n\n<p>Ng\u01b0\u1eddi mua c\u00f3 kinh nghi\u1ec7m th\u01b0\u1eddng x\u00e1c nh\u1eadn nh\u1eefng \u0111i\u1ec1u sau tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>H\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n (DIN \/ ISO \/ ASTM)<\/li>\n\n\n\n<li>\u0110\u01b0\u1eddng k\u00ednh v\u00e0 lo\u1ea1i ren<\/li>\n\n\n\n<li>Ph\u01b0\u01a1ng ph\u00e1p \u0111\u1eb7c t\u1ea3 chi\u1ec1u d\u00e0i<\/li>\n\n\n\n<li>C\u1ea5p \u0111\u1ed9 b\u1ec1n ho\u1eb7c l\u1edbp v\u1eadt li\u1ec7u<\/li>\n\n\n\n<li>X\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u ch\u1ee9ng nh\u1eadn<\/li>\n<\/ol>\n\n\n\n<p>Khi t\u00ecm ngu\u1ed3n cung \u1ee9ng qu\u1ed1c t\u1ebf, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i x\u00e1c minh xem nh\u00e0 cung c\u1ea5p c\u00f3 <strong>hi\u1ec3u s\u1ef1 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng gi\u1eefa c\u00e1c ti\u00eau chu\u1ea9n<\/strong>, v\u00ec vi\u1ec7c thay th\u1ebf kh\u00f4ng ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u ph\u1ed5 bi\u1ebfn trong mua s\u1eafm to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00fang t\u00f4i tr\u00ean <strong>Trang v\u1ec1 ch\u00fang t\u00f4i<\/strong>:<br><a href=\"https:\/\/xzfastener.com\/vi\/home\/about-us\/\">https:\/\/xzfastener.com\/home\/about-us\/<\/a><\/p>\n\n\n\n<p>Ho\u1eb7c kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ee7a ch\u00fang t\u00f4i t\u1ea1i \u0111\u00e2y:<br><a href=\"https:\/\/xzfastener.com\/vi\/home\/products\/\">https:\/\/xzfastener.com\/home\/products\/<\/a><\/p>\n\n\n\n<p>N\u1ebfu d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u <strong>\u1ed1c v\u00edt kh\u00f4ng chu\u1ea9n ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1eb7c bi\u1ec7t<\/strong>, \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i c\u0169ng c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 s\u1ea3n xu\u1ea5t theo y\u00eau c\u1ea7u:<br><a href=\"https:\/\/xzfastener.com\/vi\/home\/customized-service\/\">https:\/\/xzfastener.com\/home\/customized-service\/<\/a><\/p>\n\n\n\n<p>N\u1ebfu c\u00f3 c\u00e2u h\u1ecfi k\u1ef9 thu\u1eadt v\u1ec1 ti\u00eau chu\u1ea9n ho\u1eb7c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a chi ti\u1ebft si\u1ebft ch\u1eb7t, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi nh\u00f3m c\u1ee7a ch\u00fang t\u00f4i:<br><a href=\"https:\/\/xzfastener.com\/vi\/home\/contact-us\/\">https:\/\/xzfastener.com\/home\/contact-us\/<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">B\u00e0i h\u1ecdc ch\u00ednh<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c ti\u00eau chu\u1ea9n DIN, ISO, v\u00e0 ASTM ph\u1ee5c v\u1ee5 <strong>m\u1ee5c \u0111\u00edch kh\u00e1c nhau<\/strong> v\u00e0 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u00f3 th\u1ec3 thay th\u1ebf cho nhau.<\/li>\n\n\n\n<li>DIN v\u00e0 ISO ch\u1ee7 y\u1ebfu x\u00e1c \u0111\u1ecbnh <strong>dimensions<\/strong>, trong khi ASTM t\u1eadp trung v\u00e0o <strong>hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u v\u00e0 c\u01a1 kh\u00ed<\/strong>.<\/li>\n\n\n\n<li>Nhi\u1ec1u th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt bu l\u00f4ng k\u1ebft h\u1ee3p <strong>nhi\u1ec1u ti\u00eau chu\u1ea9n<\/strong> trong m\u1ed9t m\u00f4 t\u1ea3 duy nh\u1ea5t.<\/li>\n\n\n\n<li>C\u1ea5p \u0111\u1ed9 s\u1ee9c m\u1ea1nh th\u01b0\u1eddng l\u00e0 <strong>t\u00e1ch bi\u1ec7t kh\u1ecfi ti\u00eau chu\u1ea9n chi\u1ec1u<\/strong> v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng.<\/li>\n\n\n\n<li>Ng\u01b0\u1eddi mua ph\u1ea3i lu\u00f4n x\u00e1c nh\u1eadn <strong>ti\u00eau chu\u1ea9n, h\u1ec7 th\u1ed1ng ren, c\u1ea5p v\u1eadt li\u1ec7u v\u00e0 l\u1edbp ph\u1ee7<\/strong> tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">FAQ<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c ch\u1ed1t DIN v\u00e0 ISO c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n\n\n\n<p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p l\u00e0 c\u00f3, b\u1edfi v\u00ec nhi\u1ec1u ti\u00eau chu\u1ea9n DIN \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh ISO. Tuy nhi\u00ean, c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i nh\u1eefng kh\u00e1c bi\u1ec7t nh\u1ecf v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt quan tr\u1ecdng ph\u1ea3i lu\u00f4n tu\u00e2n theo ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i sao m\u1ed9t s\u1ed1 bu l\u00f4ng l\u1ea1i bao g\u1ed3m c\u1ea3 ti\u00eau chu\u1ea9n ISO v\u00e0 ASTM?<\/h3>\n\n\n\n<p>ISO th\u01b0\u1eddng \u0111\u1ecbnh ngh\u0129a <strong>h\u00ecnh h\u1ecdc c\u1ee7a bu l\u00f4ng<\/strong>, trong khi ASTM x\u00e1c \u0111\u1ecbnh <strong>\u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u v\u00e0 s\u1ee9c m\u1ea1nh<\/strong>. C\u1ea3 hai \u0111\u1ec1u c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng cho c\u00f9ng m\u1ed9t chi ti\u1ebft si\u1ebft ch\u1eb7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c bu l\u00f4ng c\u00f3 m\u1ea1nh h\u01a1n c\u00e1c bu l\u00f4ng kh\u00f4ng? (ASTM, ISO)<\/h3>\n\n\n\n<p>Kh\u00f4ng nh\u1ea5t thi\u1ebft ph\u1ea3i nh\u01b0 v\u1eady. C\u00e1c ti\u00eau chu\u1ea9n ASTM x\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u c\u01a1 h\u1ecdc c\u1ee5 th\u1ec3 cho m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng nh\u1ea5t \u0111\u1ecbnh, nh\u01b0ng ISO bu l\u00f4ng c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 b\u1ec1n t\u01b0\u01a1ng t\u1ef1 th\u00f4ng qua c\u00e1c c\u1ea5p \u0111\u1ed9 nh\u01b0 <strong>10.9 or 12.9<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t ph\u1ed5 bi\u1ebfn nh\u1ea5t trong th\u01b0\u01a1ng m\u1ea1i qu\u1ed1c t\u1ebf l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p>C\u00e1c ti\u00eau chu\u1ea9n ISO \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t tr\u00ean to\u00e0n c\u1ea7u v\u00ec ch\u00fang cung c\u1ea5p c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt h\u00e0i h\u00f2a ph\u00f9 h\u1ee3p v\u1edbi chu\u1ed7i cung \u1ee9ng \u0111a qu\u1ed1c gia.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 c\u00e1c k\u1ef9 s\u01b0 x\u00e1c minh c\u00e1c ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng?<\/h3>\n\n\n\n<p>C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng tham kh\u1ea3o \u00fd ki\u1ebfn <strong>b\u1ea3ng tham chi\u1ebfu ch\u00e9o<\/strong>, s\u1ed5 tay k\u1ef9 thu\u1eadt ho\u1eb7c x\u00e1c nh\u1eadn t\u00ednh t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 kinh nghi\u1ec7m quen thu\u1ed9c v\u1edbi nhi\u1ec1u h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">Conclusion<\/h1>\n\n\n\n<p>\u0110\u1ecdc ch\u00ednh x\u00e1c c\u00e1c ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng c\u01a1 b\u1ea3n trong mua s\u1eafm c\u00f4ng nghi\u1ec7p. M\u00e3 nh\u01b0 <strong>DIN 933, ISO 4017, ho\u1eb7c ASTM A325 kh\u00f4ng ph\u1ea3i l\u00e0 t\u00ean s\u1ea3n ph\u1ea9m\u2014ch\u00fang \u0111\u1ea1i di\u1ec7n cho c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ho\u00e0n ch\u1ec9nh<\/strong> x\u00e1c \u0111\u1ecbnh li\u1ec7u chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 ho\u1ea1t \u0111\u1ed9ng an to\u00e0n trong \u1ee9ng d\u1ee5ng d\u1ef1 \u0111\u1ecbnh c\u1ee7a n\u00f3 hay kh\u00f4ng.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi s\u1ea3n xu\u1ea5t m\u00e1y m\u00f3c, thi\u1ebft b\u1ecb, <strong>ISO ti\u00eau chu\u1ea9n l\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/strong>. Trong c\u00e1c thi\u1ebft k\u1ebf truy\u1ec1n th\u1ed1ng c\u1ee7a Ch\u00e2u \u00c2u, <strong>DIN v\u1eabn xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean<\/strong>, trong khi <strong>ASTM ti\u00eau chu\u1ea9n th\u1ed1ng tr\u1ecb c\u00e1c d\u1ef1 \u00e1n k\u1ebft c\u1ea5u v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u1edf B\u1eafc M\u1ef9<\/strong>.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua l\u00e0m vi\u1ec7c trong chu\u1ed7i cung \u1ee9ng qu\u1ed1c t\u1ebf, \u0111i\u1ec1u quan tr\u1ecdng kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 nh\u1eadn ra nh\u1eefng ti\u00eau chu\u1ea9n n\u00e0y m\u00e0 c\u00f2n <strong>hi\u1ec3u nh\u1eefng g\u00ec m\u1ed7i ng\u01b0\u1eddi th\u1ef1c s\u1ef1 x\u00e1c \u0111\u1ecbnh - k\u00edch th\u01b0\u1edbc, v\u1eadt li\u1ec7u ho\u1eb7c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t<\/strong>.<\/p>\n\n\n\n<p>Khi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u00f4ng r\u00f5 r\u00e0ng ho\u1eb7c li\u00ean quan \u0111\u1ebfn c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, vi\u1ec7c tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t chi ti\u1ebft si\u1ebft ch\u1eb7t c\u00f3 kinh nghi\u1ec7m c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ea3m b\u1ea3o ch\u1ecdn \u0111\u00fang s\u1ea3n ph\u1ea9m tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u s\u1ea3n xu\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction If you work in industrial procurement or engineering, you\u2019ve almost certainly seen specifications like DIN 933, ISO 4017, or ASTM A325 on drawings, RFQs, or purchase orders. At first glance these look like simple product numbers. In reality, they define critical technical requirements\u2014including bolt geometry, thread standards, material properties, and testing methods. Misunderstanding these [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3477,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[109],"tags":[],"class_list":["post-3475","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/3475","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=3475"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/3475\/revisions"}],"predecessor-version":[{"id":3476,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/3475\/revisions\/3476"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media\/3477"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=3475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=3475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=3475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}