{"id":7025,"date":"2025-08-07T13:24:20","date_gmt":"2025-08-07T05:24:20","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7025"},"modified":"2026-06-23T13:25:24","modified_gmt":"2026-06-23T05:25:24","slug":"metric-vs-imperial-fasteners-size-differences-for-global-buyers","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/metric-vs-imperial-fasteners-size-differences-for-global-buyers\/","title":{"rendered":"Ch\u1ed1t s\u1ed1 li\u1ec7u v\u00e0 ch\u1ed1t Imperial: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 k\u00edch th\u01b0\u1edbc \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi mua to\u00e0n c\u1ea7u"},"content":{"rendered":"

Ng\u01b0\u1eddi mua to\u00e0n c\u1ea7u th\u01b0\u1eddng coi c\u00e1c ch\u1ed1t theo h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 \u0111o l\u01b0\u1eddng Anh l\u00e0 \u201c\u0111\u1ee7 g\u1ea7n\u201d. \u0110\u00f3 l\u00e0 r\u1ee7i ro. Bu l\u00f4ng h\u1ec7 m\u00e9t c\u00f3 th\u1ec3 tr\u00f4ng gi\u1ed1ng nh\u01b0 bu l\u00f4ng inch, nh\u01b0ng \u0111\u01b0\u1eddng k\u00ednh, b\u01b0\u1edbc ren, k\u00edch th\u01b0\u1edbc c\u1edd l\u00ea, h\u1ec7 th\u1ed1ng c\u1ea5p \u0111\u1ed9 v\u00e0 ti\u00eau chu\u1ea9n th\u00ec kh\u00e1c nhau.<\/p>\n\n\n\n

\u0110\u1ec3 t\u00ecm ngu\u1ed3n cung \u1ee9ng, ki\u1ec3m tra v\u00e0 l\u1eafp \u0111\u1eb7t, c\u00e1c \u1ed1c v\u00edt theo h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 \u0111o l\u01b0\u1eddng Anh ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh th\u00e0nh c\u00e1c h\u1ec7 th\u1ed1ng ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n

Ch\u1ed1t theo h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 \u0111o l\u01b0\u1eddng Anh \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh<\/h2>\n\n\n\n

H\u1ec7 th\u1ed1ng k\u00edch th\u01b0\u1edbc<\/h3>\n\n\n\n

Ch\u1ed1t s\u1ed1 li\u1ec7u s\u1eed d\u1ee5ng milim\u00e9t. K\u00edch th\u01b0\u1edbc nh\u01b0 M12 x 1.75 x 50 mm<\/strong> ngh\u0129a l\u00e0 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a 12 mm, b\u01b0\u1edbc ren 1.75 mm v\u00e0 chi\u1ec1u d\u00e0i 50 mm.<\/p>\n\n\n\n

Ch\u1ed1t Imperial s\u1eed d\u1ee5ng inch. K\u00edch th\u01b0\u1edbc nh\u01b0 1\/2″-13 x 2″<\/strong> c\u00f3 ngh\u0129a l\u00e0 \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a 1\/2 inch, 13 ren tr\u00ean inch, v\u00e0 chi\u1ec1u d\u00e0i 2 inch.<\/p>\n\n\n\n

M\u1ee5c<\/th>Chi ti\u1ebft si\u1ebft ch\u1eb7t s\u1ed1 li\u1ec7u<\/th>Chi ti\u1ebft si\u1ebft ch\u1eb7t ho\u00e0ng gia<\/th><\/tr><\/thead>
Diameter<\/td>Milimet, ch\u1eb3ng h\u1ea1n nh\u01b0 M8, M10, M12<\/td>inch, ch\u1eb3ng h\u1ea1n nh\u01b0 5\/16″, 3\/8″, 1\/2″<\/td><\/tr>
ch\u1ee7 \u0111\u1ec1<\/td>Cao \u0111\u1ed9 t\u00ednh b\u1eb1ng mm<\/td>S\u1ed1 s\u1ee3i tr\u00ean m\u1ed7i inch, ho\u1eb7c TPI<\/td><\/tr>
C\u00e1c lo\u1ea1i ch\u1ee7 \u0111\u1ec1 ph\u1ed5 bi\u1ebfn<\/td>S\u1ed1 li\u1ec7u th\u00f4, s\u1ed1 li\u1ec7u t\u1ed1t<\/td>UNC, UNF<\/td><\/tr>
Standards<\/td>ISO, DIN, EN, JIS<\/td>ASME, ASTM, SAE, IFI<\/td><\/tr>
Th\u1ecb tr\u01b0\u1eddng chung<\/td>Ch\u00e2u \u00c2u, Ch\u00e2u \u00c1, Trung \u0110\u00f4ng<\/td>M\u1ef9, Canada, m\u1ed9t s\u1ed1 m\u1eb7t h\u00e0ng c\u00f4ng nghi\u1ec7p nh\u1eadp kh\u1ea9u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110\u1ec3 tham kh\u1ea3o s\u1ea3n ph\u1ea9m theo ch\u1ec9 s\u1ed1, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem l\u1ea1i bu l\u00f4ng c\u00f4ng nghi\u1ec7p<\/a> v\u00e0 so s\u00e1nh c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng.<\/p>\n\n\n\n

Nh\u1ea7m l\u1eabn k\u00edch th\u01b0\u1edbc ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n

T\u01b0\u01a1ng t\u1ef1 kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf cho nhau<\/h3>\n\n\n\n

M\u1ed9t s\u1ed1 k\u00edch th\u01b0\u1edbc c\u00f3 v\u1ebb g\u1ea7n nhau nh\u01b0ng kh\u00f4ng n\u00ean tr\u1ed9n l\u1eabn.<\/p>\n\n\n\n

K\u00edch th\u01b0\u1edbc s\u1ed1 li\u1ec7u<\/th>K\u00edch th\u01b0\u1edbc ho\u00e0ng gia t\u01b0\u01a1ng t\u1ef1<\/th>C\u1ea3nh b\u00e1o ng\u01b0\u1eddi mua<\/th><\/tr><\/thead>
M6<\/td>1\/4″<\/td>\u0110\u01b0\u1eddng k\u00ednh v\u00e0 cao \u0111\u1ed9 kh\u00e1c nhau<\/td><\/tr>
M8<\/td>5\/16″<\/td>Kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ch\u1ee7 \u0111\u1ec1 ph\u00f9 h\u1ee3p<\/td><\/tr>
M10<\/td>3\/8″<\/td>\u0110\u01b0\u1eddng k\u00ednh \u0111\u00f3ng, h\u1ec7 th\u1ed1ng ren sai<\/td><\/tr>
M12<\/td>1\/2″<\/td>L\u1ed7i tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn<\/td><\/tr>
M16<\/td>5\/8″<\/td>Y\u00eau c\u1ea7u h\u1ec7 th\u1ed1ng \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m ch\u00ednh x\u00e1c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u0110ai \u1ed1c c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u sai bu-l\u00f4ng trong m\u1ed9t ho\u1eb7c hai v\u00f2ng, sau \u0111\u00f3 li\u00ean k\u1ebft l\u1ea1i. \u0110\u00f3 l\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. N\u00f3 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng ren v\u00e0 t\u1ea1o ra k\u1ebft qu\u1ea3 \u0111o m\u00f4-men xo\u1eafn sai.<\/p>\n\n\n\n

Ti\u00eau chu\u1ea9n v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111i\u1ec3m s\u1ed1<\/h2>\n\n\n\n

\u0110\u00e1nh d\u1ea5u s\u1ee9c m\u1ea1nh c\u0169ng kh\u00e1c nhau<\/h3>\n\n\n\n

Bu l\u00f4ng h\u1ec7 m\u00e9t th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c l\u1edbp thu\u1ed9c t\u00ednh nh\u01b0 8.8, 10.9, v\u00e0 12.9. C\u00e1c ch\u1ed1t Imperial c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng SAE C\u1ea5p 5, SAE C\u1ea5p 8, ASTM A325, ASTM A490, ho\u1eb7c c\u00e1c c\u1ea5p ASTM kh\u00e1c.<\/p>\n\n\n\n

Ng\u01b0\u1eddi mua kh\u00f4ng n\u00ean chuy\u1ec3n \u0111\u1ed5i h\u1ea1ng theo ngo\u1ea1i h\u00ecnh. X\u00e1c nh\u1eadn ti\u00eau chu\u1ea9n th\u1ef1c t\u1ebf, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 s\u1ef1 ph\u00f9 h\u1ee3p \u0111ai \u1ed1c<\/a> v\u00e0 v\u00f2ng \u0111\u1ec7m<\/a>.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n, \u0111i\u1ec1u n\u00e0y H\u01b0\u1edbng d\u1eabn ti\u00eau chu\u1ea9n chi ti\u1ebft si\u1ebft ch\u1eb7t DIN v\u00e0 ISO<\/a> l\u00e0 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o h\u1eefu \u00edch.<\/p>\n\n\n\n

Danh s\u00e1ch ki\u1ec3m tra ng\u01b0\u1eddi mua<\/h2>\n\n\n\n

Tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng chi ti\u1ebft si\u1ebft ch\u1eb7t qu\u1ed1c t\u1ebf, h\u00e3y x\u00e1c nh\u1eadn:<\/p>\n\n\n\n

    \n
  1. H\u1ec7 m\u00e9t ho\u1eb7c h\u1ec7 \u0111o l\u01b0\u1eddng Anh.<\/li>\n\n\n\n
  2. \u0110\u01b0\u1eddng k\u00ednh, chi\u1ec1u d\u00e0i v\u00e0 b\u01b0\u1edbc ren ho\u1eb7c TPI.<\/li>\n\n\n\n
  3. C\u1ea5p \u0111\u1ed9 ti\u00eau chu\u1ea9n v\u00e0 s\u1ee9c m\u1ea1nh.<\/li>\n\n\n\n
  4. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m.<\/li>\n\n\n\n
  5. L\u1edbp ph\u1ee7 v\u00e0 s\u1ee3i ph\u00f9 h\u1ee3p.<\/li>\n\n\n\n
  6. Y\u00eau c\u1ea7u v\u1ec1 th\u01b0\u1edbc ki\u1ec3m tra.<\/li>\n\n\n\n
  7. Nh\u00e3n \u0111\u00f3ng g\u00f3i \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch theo h\u1ec7 th\u1ed1ng k\u00edch th\u01b0\u1edbc.<\/li>\n<\/ol>\n\n\n\n

    C\u00e1c \u1ed1c v\u00edt h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 \u0111o l\u01b0\u1eddng Anh c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 c\u00f9ng m\u1ed9t ng\u00e0nh, nh\u01b0ng ch\u00fang kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf m\u1ed9t c\u00e1ch t\u00f9y ti\u1ec7n. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt r\u00f5 r\u00e0ng ng\u0103n ch\u1eb7n vi\u1ec7c v\u1eadn chuy\u1ec3n sai, l\u1eafp r\u00e1p k\u00e9m v\u00e0 ch\u1eadm tr\u1ec5 t\u1ea1i \u0111\u1ecba \u0111i\u1ec3m g\u00e2y t\u1ed1n k\u00e9m.<\/p>","protected":false},"excerpt":{"rendered":"

    Global buyers often treat metric and imperial fasteners as \u201cclose enough.\u201d That is risky. A metric bolt may look similar to an inch bolt, but the diameter, thread pitch, wrench size, grade system, and standards are different. For sourcing, inspection, and installation, metric and imperial fasteners should be specified as separate systems. Metric and Imperial […]<\/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":[482],"class_list":["post-7025","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-fastener-sizes-specifications"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7025","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=7025"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7025\/revisions"}],"predecessor-version":[{"id":7026,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7025\/revisions\/7026"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}