{"id":5786,"date":"2025-12-25T01:23:24","date_gmt":"2025-12-25T01:23:24","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5786"},"modified":"2025-12-25T01:23:24","modified_gmt":"2025-12-25T01:23:24","slug":"metric-unified-thread-pitch-standards-chart","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/metric-unified-thread-pitch-standards-chart\/","title":{"rendered":"B\u1ea3ng ti\u00eau chu\u1ea9n b\u01b0\u1edbc ren h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 inch"},"content":{"rendered":"

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Gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m b\u01b0\u1edbc ren<\/h2>\n

B\u01b0\u1edbc ren, hay c\u00f2n g\u1ecdi l\u00e0 \u0111\u1ed9 nghi\u00eang ren, l\u00e0 kho\u1ea3ng c\u00e1ch d\u1ecdc tr\u1ee5c gi\u1eefa c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng \u1ee9ng tr\u00ean c\u00e1c ren li\u1ec1n k\u1ec1 d\u1ecdc theo \u0111\u01b0\u1eddng k\u00ednh b\u01b0\u1edbc ren. Th\u00f4ng s\u1ed1 n\u00e0y r\u1ea5t quan tr\u1ecdng trong k\u1ef9 thu\u1eadt c\u01a1 kh\u00ed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c chi ti\u1ebft v\u00e0 linh ki\u1ec7n c\u00f3 ren.<\/p>\n

Trong h\u1ec7 m\u00e9t, b\u01b0\u1edbc ren \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp b\u1eb1ng milim\u00e9t (mm), v\u00ed d\u1ee5 nh\u01b0 M8 x 1.25, trong \u0111\u00f3 1.25 mm bi\u1ec3u th\u1ecb b\u01b0\u1edbc ren. \u0110\u1ed1i v\u1edbi ren th\u00f4 ti\u00eau chu\u1ea9n, b\u01b0\u1edbc ren th\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ecf qua trong k\u00fd hi\u1ec7u (v\u00ed d\u1ee5: M8 ng\u1ee5 \u00fd 1.25 mm), nh\u01b0ng n\u00ean ch\u1ec9 \u0111\u1ecbnh r\u00f5 r\u00e0ng \u0111\u1ec3 tr\u00e1nh hi\u1ec3u nh\u1ea7m.<\/p>\n

Trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng th\u1ed1ng nh\u1ea5t (d\u1ef1a tr\u00ean inch), b\u01b0\u1edbc ren \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng s\u1ed1 ren tr\u00ean m\u1ed7i inch (TPI), v\u00ed d\u1ee5 nh\u01b0 1\/4-20, cho bi\u1ebft c\u00f3 20 ren tr\u00ean m\u1ed7i inch, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u01b0\u1edbc ren kho\u1ea3ng 1,27 mm. \u0110\u01b0\u1eddng k\u00ednh nh\u1ecf h\u01a1n 1\/4 inch s\u1eed d\u1ee5ng k\u00fd hi\u1ec7u s\u1ed1 (v\u00ed d\u1ee5: #10-24).<\/p>\n

Hi\u1ec3u r\u00f5 c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p v\u1ec1 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i, ch\u1ed1ng rung v\u00e0 l\u1eafp r\u00e1p trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 v\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n<\/div>\n

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Ti\u00eau chu\u1ea9n b\u01b0\u1edbc ren h\u1ec7 m\u00e9t<\/h2>\n

Ren h\u1ec7 m\u00e9t tu\u00e2n theo ti\u00eau chu\u1ea9n ISO, cung c\u1ea5p c\u00e1c b\u01b0\u1edbc ren th\u00f4 v\u00e0 m\u1ecbn cho nhi\u1ec1u \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a kh\u00e1c nhau. B\u01b0\u1edbc ren th\u00f4 gi\u00fap l\u1eafp r\u00e1p d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, trong khi b\u01b0\u1edbc ren m\u1ecbn mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng rung t\u1ed1t h\u01a1n v\u00e0 \u0111i\u1ec1u ch\u1ec9nh ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n

B\u1ea3ng sau li\u1ec7t k\u00ea c\u00e1c b\u01b0\u1edbc ren ti\u00eau chu\u1ea9n t\u00ednh b\u1eb1ng milim\u00e9t (mm) cho c\u00e1c lo\u1ea1i ren h\u1ec7 m\u00e9t th\u00f4ng d\u1ee5ng, d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n ISO 261 v\u00e0 ISO 262. D\u1ea5u ngo\u1eb7c \u0111\u01a1n ch\u1ec9 c\u00e1c k\u00edch th\u01b0\u1edbc \u00edt ph\u1ed5 bi\u1ebfn h\u01a1n.<\/p>\n

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\u0110\u01b0\u1eddng k\u00ednh danh ngh\u0129a<\/th>\nB\u01b0\u1edbc r\u0103ng th\u00f4 (mm)<\/th>\nB\u01b0\u1edbc ren m\u1ecbn (mm)<\/th>\n<\/tr>\n<\/thead>\n
M1<\/td>\n0.25<\/td>\n0.2<\/td>\n<\/tr>\n
M1.2<\/td>\n0.25<\/td>\n0.2<\/td>\n<\/tr>\n
M1.6<\/td>\n0.35<\/td>\n0.2<\/td>\n<\/tr>\n
M2<\/td>\n0.4<\/td>\n0.25<\/td>\n<\/tr>\n
M2.5<\/td>\n0.45<\/td>\n0.35<\/td>\n<\/tr>\n
M3<\/td>\n0.5<\/td>\n0.35<\/td>\n<\/tr>\n
M3.5<\/td>\n0.6<\/td>\n0.35<\/td>\n<\/tr>\n
M4<\/td>\n0.7<\/td>\n0.5<\/td>\n<\/tr>\n
M5<\/td>\n0.8<\/td>\n0.5<\/td>\n<\/tr>\n
M6<\/td>\n1<\/td>\n0.75<\/td>\n<\/tr>\n
M8<\/td>\n1.25<\/td>\n1<\/td>\n<\/tr>\n
M10<\/td>\n1.5<\/td>\n1.25<\/td>\n<\/tr>\n
M12<\/td>\n1.75<\/td>\n1.25<\/td>\n<\/tr>\n
M14<\/td>\n2<\/td>\n1.5<\/td>\n<\/tr>\n
M16<\/td>\n2<\/td>\n1.5<\/td>\n<\/tr>\n
M18<\/td>\n2.5<\/td>\n1.5<\/td>\n<\/tr>\n
M20<\/td>\n2.5<\/td>\n1.5<\/td>\n<\/tr>\n
M22<\/td>\n2.5<\/td>\n1.5<\/td>\n<\/tr>\n
M24<\/td>\n3<\/td>\n2<\/td>\n<\/tr>\n
M27<\/td>\n3<\/td>\n2<\/td>\n<\/tr>\n
M30<\/td>\n3.5<\/td>\n2<\/td>\n<\/tr>\n
(M33)<\/td>\n3.5<\/td>\n2<\/td>\n<\/tr>\n
M36<\/td>\n4<\/td>\n3<\/td>\n<\/tr>\n
(M39)<\/td>\n4<\/td>\n3<\/td>\n<\/tr>\n
M42<\/td>\n4.5<\/td>\n3<\/td>\n<\/tr>\n
(M45)<\/td>\n4.5<\/td>\n3<\/td>\n<\/tr>\n
M48<\/td>\n5<\/td>\n3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

Khi l\u1ef1a ch\u1ecdn ren h\u1ec7 m\u00e9t, c\u1ea7n xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 y\u00eau c\u1ea7u t\u1ea3i tr\u1ecdng, \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn gh\u00e9p n\u1ed1i. V\u00ed d\u1ee5, b\u01b0\u1edbc ren nh\u1ecf \u0111\u01b0\u1ee3c \u01b0u ti\u00ean trong m\u00f4i tr\u01b0\u1eddng c\u00f3 \u0111\u1ed9 rung cao \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 b\u1ecb l\u1ecfng.<\/p>\n<\/div>\n

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Ti\u00eau chu\u1ea9n b\u01b0\u1edbc ren th\u1ed1ng nh\u1ea5t (d\u1ef1a tr\u00ean \u0111\u01a1n v\u1ecb inch)<\/h2>\n

C\u00e1c lo\u1ea1i ren ti\u00eau chu\u1ea9n, \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi ASME\/ANSI B1.1, bao g\u1ed3m ren th\u00f4 ti\u00eau chu\u1ea9n (UNC) v\u00e0 ren m\u1ecbn ti\u00eau chu\u1ea9n (UNF). Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p B\u1eafc M\u1ef9. \u0110\u01b0\u1eddng k\u00ednh \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng inch ho\u1eb7c k\u00edch th\u01b0\u1edbc s\u1ed1, v\u1edbi b\u01b0\u1edbc ren t\u00ednh b\u1eb1ng TPI (s\u1ed1 v\u00f2ng tr\u00ean m\u1ed7i inch).<\/p>\n

B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p \u0111\u01b0\u1eddng k\u00ednh ti\u00eau chu\u1ea9n v\u00e0 TPI (s\u1ed1 v\u00f2ng ren tr\u00ean m\u1ed7i inch) cho ren UNC v\u00e0 UNF. L\u01b0u \u00fd: D\u1ea5u g\u1ea1ch ngang bi\u1ec3u th\u1ecb c\u00e1c ti\u00eau chu\u1ea9n kh\u00f4ng c\u00f3 s\u1eb5n cho d\u00f2ng ren \u0111\u00f3.<\/p>\n

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\u0110\u01b0\u1eddng k\u00ednh danh ngh\u0129a<\/th>\nK\u00edch th\u01b0\u1edbc inch<\/th>\nT\u01b0\u01a1ng \u0111\u01b0\u01a1ng mm<\/th>\nUNC TPI<\/th>\nUNF TPI<\/th>\n<\/tr>\n<\/thead>\n
#0<\/td>\n0.060<\/td>\n1.524<\/td>\n–<\/td>\n80<\/td>\n<\/tr>\n
#1<\/td>\n0.073<\/td>\n1.854<\/td>\n64<\/td>\n72<\/td>\n<\/tr>\n
#2<\/td>\n0.086<\/td>\n2.184<\/td>\n56<\/td>\n64<\/td>\n<\/tr>\n
#3<\/td>\n0.099<\/td>\n2.515<\/td>\n48<\/td>\n56<\/td>\n<\/tr>\n
#4<\/td>\n0.112<\/td>\n2.845<\/td>\n40<\/td>\n48<\/td>\n<\/tr>\n
#5<\/td>\n0.125<\/td>\n3.175<\/td>\n40<\/td>\n44<\/td>\n<\/tr>\n
#6<\/td>\n0.138<\/td>\n3.505<\/td>\n32<\/td>\n40<\/td>\n<\/tr>\n
#8<\/td>\n0.164<\/td>\n4.166<\/td>\n32<\/td>\n36<\/td>\n<\/tr>\n
#10<\/td>\n0.190<\/td>\n4.826<\/td>\n24<\/td>\n32<\/td>\n<\/tr>\n
#12<\/td>\n0.216<\/td>\n5.486<\/td>\n24<\/td>\n28<\/td>\n<\/tr>\n
1\/4″<\/td>\n0.250<\/td>\n6.350<\/td>\n20<\/td>\n28<\/td>\n<\/tr>\n
5\/16″<\/td>\n0.3125<\/td>\n7.938<\/td>\n18<\/td>\n24<\/td>\n<\/tr>\n
3\/8″<\/td>\n0.375<\/td>\n9.525<\/td>\n16<\/td>\n24<\/td>\n<\/tr>\n
7\/16″<\/td>\n0.4375<\/td>\n11.113<\/td>\n14<\/td>\n20<\/td>\n<\/tr>\n
1\/2″<\/td>\n0.500<\/td>\n12.700<\/td>\n13<\/td>\n20<\/td>\n<\/tr>\n
9\/16″<\/td>\n0.5625<\/td>\n14.288<\/td>\n12<\/td>\n18<\/td>\n<\/tr>\n
5\/8″<\/td>\n0.625<\/td>\n15.875<\/td>\n11<\/td>\n18<\/td>\n<\/tr>\n
3\/4″<\/td>\n0.750<\/td>\n19.050<\/td>\n10<\/td>\n16<\/td>\n<\/tr>\n
7\/8″<\/td>\n0.875<\/td>\n22.225<\/td>\n9<\/td>\n14<\/td>\n<\/tr>\n
1″<\/td>\n1.000<\/td>\n25.400<\/td>\n8<\/td>\n12<\/td>\n<\/tr>\n
1-1\/8″<\/td>\n1.125<\/td>\n28.575<\/td>\n7<\/td>\n12<\/td>\n<\/tr>\n
1-1\/4″<\/td>\n1.250<\/td>\n31.750<\/td>\n7<\/td>\n12<\/td>\n<\/tr>\n
1-3\/8″<\/td>\n1.375<\/td>\n34.925<\/td>\n6<\/td>\n12<\/td>\n<\/tr>\n
1-1\/2″<\/td>\n1.500<\/td>\n38.100<\/td>\n6<\/td>\n12<\/td>\n<\/tr>\n
1-3\/4″<\/td>\n1.750<\/td>\n44.450<\/td>\n5<\/td>\n–<\/td>\n<\/tr>\n
2″<\/td>\n2.000<\/td>\n50.800<\/td>\n4.5<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
<\/div>\n<\/div>\n<\/div>\n<\/div>\n

\u0110\u1ed1i v\u1edbi ren ti\u00eau chu\u1ea9n, UNC ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng si\u1ebft ch\u1eb7t th\u00f4ng th\u01b0\u1eddng, trong khi UNF v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n ho\u1eb7c h\u1ea1n ch\u1ebf v\u1ec1 kh\u00f4ng gian. Lu\u00f4n lu\u00f4n ki\u1ec3m tra v\u1edbi ti\u00eau chu\u1ea9n ASME v\u1ec1 dung sai v\u00e0 \u0111\u1ed9 l\u1eafp gh\u00e9p.<\/p>\n<\/div>\n

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H\u01b0\u1edbng d\u1eabn so s\u00e1nh v\u00e0 chuy\u1ec3n \u0111\u1ed5i<\/h2>\n

Vi\u1ec7c so s\u00e1nh h\u1ec7 m\u00e9t v\u00e0 h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng th\u1ed1ng nh\u1ea5t li\u00ean quan \u0111\u1ebfn vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i b\u01b0\u1edbc ren sang \u0111\u01a1n v\u1ecb t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. B\u01b0\u1edbc ren (mm) = 25,4 \/ TPI. V\u00ed d\u1ee5, 20 TPI b\u1eb1ng 1,27 mm.<\/p>\n

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  • \u1ed0ng ren th\u00f4 h\u1ec7 m\u00e9t th\u01b0\u1eddng t\u01b0\u01a1ng th\u00edch v\u1edbi \u1ed1ng ren UNC \u0111\u1ed1i v\u1edbi c\u00e1c \u0111\u01b0\u1eddng k\u00ednh t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng s\u1ef1 tr\u00f9ng kh\u1edbp ho\u00e0n to\u00e0n r\u1ea5t hi\u1ebfm.<\/li>\n
  • S\u1eed d\u1ee5ng b\u1ea3ng quy \u0111\u1ed5i \u0111\u1ec3 so s\u00e1nh kh\u1ea3 n\u0103ng thay th\u1ebf, c\u00f3 t\u00ednh \u0111\u1ebfn g\u00f3c ren (60\u00b0 cho c\u1ea3 hai) v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 h\u00ecnh d\u1ea1ng.<\/li>\n
  • Trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p h\u1ed7n h\u1ee3p, h\u00e3y s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c tham kh\u1ea3o ti\u00eau chu\u1ea9n ISO 68-1 v\u00e0 ASME B1.1 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/li>\n<\/ul>\n

    Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i ch\u00ednh x\u00e1c gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y m\u00f3c ho\u1eb7c k\u1ebft c\u1ea5u c\u00f4ng tr\u00ecnh.<\/p>\n<\/div>\n

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    \u1ee8ng d\u1ee5ng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/h2>\n

    B\u01b0\u1edbc ren \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u00f4-men xo\u1eafn khi l\u1eafp r\u00e1p, l\u1ef1c si\u1ebft ban \u0111\u1ea7u v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ecfi. Trong ng\u00e0nh \u00f4 t\u00f4, b\u01b0\u1edbc ren nh\u1ecf gi\u00fap gi\u1ea3m tr\u1ecdng l\u01b0\u1ee3ng; trong ng\u00e0nh x\u00e2y d\u1ef1ng, b\u01b0\u1edbc ren l\u1edbn gi\u00fap t\u0103ng t\u1ed1c \u0111\u1ed9 l\u1eafp \u0111\u1eb7t.<\/p>\n

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    1. L\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n v\u1eadt li\u1ec7u: V\u1eadt li\u1ec7u m\u1ec1m h\u01a1n th\u00edch h\u1ee3p h\u01a1n v\u1edbi c\u00e1c lo\u1ea1i gai l\u1ed1p th\u00f4 h\u01a1n \u0111\u1ec3 tr\u00e1nh b\u1ecb bong tr\u00f3c.<\/li>\n
    2. Ki\u1ec3m tra \u0111\u1ed9 m\u00e0i m\u00f2n: S\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 \u0111o tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ISO 1502 ho\u1eb7c ASME B1.2.<\/li>\n
    3. B\u00f4i tr\u01a1n: Gi\u1ea3m ma s\u00e1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf c\u00e1c ren nh\u1ecf.<\/li>\n
    4. C\u1ea7n xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng: L\u1edbp ph\u1ee7 ch\u1ed1ng \u0103n m\u00f2n cho s\u1eed d\u1ee5ng ngo\u00e0i tr\u1eddi.<\/li>\n<\/ol>\n

      Tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh nh\u01b0 DIN v\u00e0 SAE.<\/p>\n<\/div>\n

      \n

      C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n
      \n
      S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u01b0\u1edbc ren th\u00f4 v\u00e0 b\u01b0\u1edbc ren m\u1ecbn l\u00e0 g\u00ec?<\/dt>\n
      C\u00e1c ren l\u1edbn cho ph\u00e9p l\u1eafp r\u00e1p nhanh h\u01a1n v\u00e0 l\u1ef1c k\u1eb9p m\u1ea1nh h\u01a1n, l\u00fd t\u01b0\u1edfng cho c\u00e1c v\u1eadt li\u1ec7u m\u1ec1m, trong khi c\u00e1c ren nh\u1ecf mang l\u1ea1i kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh v\u00e0 ch\u1ed1ng rung t\u1ed1t h\u01a1n, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i tr\u1ecdng cao.<\/dd>\n
      <\/dd>\n
      L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i TPI sang b\u01b0\u1edbc ren h\u1ec7 m\u00e9t?<\/dt>\n
      Chia 25,4 cho gi\u00e1 tr\u1ecb TPI. V\u00ed d\u1ee5, 20 TPI t\u01b0\u01a1ng \u1ee9ng v\u1edbi 25,4 \/ 20 = 1,27 mm b\u01b0\u1edbc ren.<\/dd>\n
      <\/dd>\n
      Ren h\u1ec7 m\u00e9t v\u00e0 ren h\u1ec7 th\u1ed1ng \u0111o l\u01b0\u1eddng Anh c\u00f3 th\u1ec3 thay th\u1ebf cho nhau kh\u00f4ng?<\/dt>\n
      Th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u00f4ng, do s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 b\u01b0\u1edbc ren. H\u00e3y s\u1eed d\u1ee5ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ren ho\u1eb7c tham kh\u1ea3o c\u00e1c ti\u00eau chu\u1ea9n cho t\u1eebng tr\u01b0\u1eddng h\u1ee3p c\u1ee5 th\u1ec3.<\/dd>\n
      <\/dd>\n
      T\u00f4i n\u00ean s\u1eed d\u1ee5ng b\u01b0\u1edbc ren n\u00e0o cho bu l\u00f4ng M10 trong \u1ee9ng d\u1ee5ng \u00f4 t\u00f4?<\/dt>\n
      \u0110\u1ed1i v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng th\u00f4ng th\u01b0\u1eddng, n\u00ean d\u00f9ng lo\u1ea1i h\u1ea1t th\u00f4 1,5 mm; \u0111\u1ed1i v\u1edbi khu v\u1ef1c d\u1ec5 b\u1ecb rung \u0111\u1ed9ng, n\u00ean d\u00f9ng lo\u1ea1i h\u1ea1t m\u1ecbn 1,25 mm, theo khuy\u1ebfn ngh\u1ecb c\u1ee7a ti\u00eau chu\u1ea9n ISO.<\/dd>\n
      <\/dd>\n
      B\u01b0\u1edbc ren \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n nh\u01b0 th\u1ebf n\u00e0o?<\/dt>\n
      B\u01b0\u1edbc ren nh\u1ecf h\u01a1n gi\u00fap ph\u00e2n b\u1ed5 t\u1ea3i tr\u1ecdng tr\u00ean nhi\u1ec1u ren h\u01a1n, l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n k\u00e9o nh\u01b0ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 b\u1ec1n c\u1eaft c\u1ee7a bu l\u00f4ng.<\/dd>\n
      <\/dd>\n
      C\u00e1c ti\u00eau chu\u1ea9n n\u00e0o quy \u0111\u1ecbnh b\u01b0\u1edbc ren n\u00e0y?<\/dt>\n
      H\u1ec7 m\u00e9t: ISO 261\/262; H\u1ec7 th\u1ed1ng th\u1ed1ng nh\u1ea5t: ASME B1.1. Lu\u00f4n tham kh\u1ea3o c\u00e1c phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/dd>\n<\/dl>\n<\/div>\n

       <\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

        Introduction to Thread Pitch Concepts Thread pitch, also known as lead, refers to the axial distance between corresponding points on adjacent threads along the pitch diameter line. This parameter is critical in mechanical engineering for ensuring compatibility and performance in threaded fasteners and components. In metric systems, pitch is directly specified in millimeters (mm), […]<\/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-5786","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\/5786","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=5786"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5786\/revisions"}],"predecessor-version":[{"id":5788,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5786\/revisions\/5788"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}