{"id":5727,"date":"2025-12-24T03:02:31","date_gmt":"2025-12-24T03:02:31","guid":{"rendered":"https:\/\/korea-transmission.com\/?p=5727"},"modified":"2025-12-24T03:02:31","modified_gmt":"2025-12-24T03:02:31","slug":"bolt-screw-stud-length-standards-guide","status":"publish","type":"post","link":"https:\/\/korea-transmission.com\/vi\/blog\/bolt-screw-stud-length-standards-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ti\u00eau chu\u1ea9n v\u1ec1 chi\u1ec1u d\u00e0i bu l\u00f4ng, v\u00edt, \u0111inh t\u00e1n"},"content":{"rendered":"
\n

\u0110\u1ec1 c\u01b0\u01a1ng b\u00e0i vi\u1ebft<\/h2>\n

H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 chi\u1ec1u d\u00e0i danh ngh\u0129a v\u00e0 chi\u1ec1u d\u00e0i ren c\u1ee7a bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n, d\u1ef1a tr\u00ean ti\u00eau chu\u1ea9n ISO 888:2012 v\u00e0 c\u00e1c dung sai li\u00ean quan t\u1eeb ti\u00eau chu\u1ea9n ISO 4759-1. C\u1ea5u tr\u00fac nh\u01b0 sau:<\/p>\n

    \n
  1. Gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ed9 d\u00e0i<\/li>\n
  2. Ti\u00eau chu\u1ea9n chi\u1ec1u d\u00e0i danh ngh\u0129a<\/li>\n
  3. Ti\u00eau chu\u1ea9n chi\u1ec1u d\u00e0i ren<\/li>\n
  4. Ghi ch\u00fa quan tr\u1ecdng v\u00e0 c\u00e1c ph\u00e9p t\u00ednh<\/li>\n
  5. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/li>\n<\/ol>\n<\/div>\n
    \n

    Gi\u1edbi thi\u1ec7u v\u1ec1 c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ed9 d\u00e0i<\/h2>\n

    C\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 chi\u1ec1u d\u00e0i danh ngh\u0129a v\u00e0 chi\u1ec1u d\u00e0i ren c\u1ee7a bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau, t\u00ednh nh\u1ea5t qu\u00e1n trong thi\u1ebft k\u1ebf, qu\u1ea3n l\u00fd v\u1eadt li\u1ec7u hi\u1ec7u qu\u1ea3, n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh c\u1ee7a ng\u00e0nh. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y, ph\u00f9 h\u1ee3p v\u1edbi ISO 888:2012 v\u1ec1 chi\u1ec1u d\u00e0i v\u00e0 ISO 4759-1 v\u1ec1 dung sai, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c s\u1ea3n xu\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u1ed3ng nh\u1ea5t tr\u00ean c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 \u00f4 t\u00f4, x\u00e2y d\u1ef1ng v\u00e0 m\u00e1y m\u00f3c.<\/p>\n

    Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c chi\u1ec1u d\u00e0i ti\u00eau chu\u1ea9n gi\u00fap gi\u1ea3m thi\u1ec3u c\u00e1c v\u1ea5n \u0111\u1ec1 khi l\u1eafp \u0111\u1eb7t, \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd kho v\u00e0 gi\u1ea3m chi ph\u00ed. C\u00e1c c\u1ea5p s\u1ea3n ph\u1ea9m A, B v\u00e0 C x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 dung sai, trong \u0111\u00f3 A c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao, B d\u00e0nh cho m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng chung v\u00e0 C d\u00e0nh cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u00edt quan tr\u1ecdng h\u01a1n.<\/p>\n

      \n
    • Kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau: Cho ph\u00e9p thay th\u1ebf li\u1ec1n m\u1ea1ch t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau.<\/li>\n
    • T\u00ednh nh\u1ea5t qu\u00e1n trong thi\u1ebft k\u1ebf: Th\u00fac \u0111\u1ea9y c\u00e1c th\u1ef1c ti\u1ec5n k\u1ef9 thu\u1eadt \u0111\u1ed3ng nh\u1ea5t.<\/li>\n
    • Qu\u1ea3n l\u00fd v\u1eadt t\u01b0: T\u1ed1i \u01b0u h\u00f3a vi\u1ec7c ki\u1ec3m so\u00e1t kho v\u00e0 mua s\u1eafm.<\/li>\n
    • Hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t: T\u1ed1i \u01b0u h\u00f3a quy tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/li>\n
    • Tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh: \u0110\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c gia v\u00e0 qu\u1ed1c t\u1ebf.<\/li>\n<\/ul>\n

      C\u00e1c h\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p ch\u1ec9 d\u1eabn th\u1ef1c ti\u1ec5n \u0111\u1ec3 l\u1ef1a ch\u1ecdn chi\u1ec1u d\u00e0i ph\u00f9 h\u1ee3p, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac v\u00e0 hi\u1ec7u su\u1ea5t trong c\u00e1c c\u1ee5m l\u1eafp gh\u00e9p b\u1eb1ng v\u00edt.<\/p>\n<\/div>\n

      \n

      Ti\u00eau chu\u1ea9n chi\u1ec1u d\u00e0i danh ngh\u0129a<\/h2>\n

      Chi\u1ec1u d\u00e0i danh ngh\u0129a c\u1ee7a bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n tu\u00e2n theo ti\u00eau chu\u1ea9n ISO 888:2012, v\u1edbi dung sai theo ti\u00eau chu\u1ea9n ISO 4759-1. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y li\u1ec7t k\u00ea c\u00e1c chi\u1ec1u d\u00e0i danh ngh\u0129a \u01b0u ti\u00ean (l) t\u00ednh b\u1eb1ng mm, c\u00f9ng v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb t\u1ed1i thi\u1ec3u v\u00e0 t\u1ed1i \u0111a cho c\u00e1c c\u1ea5p A, B v\u00e0 C. Tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c chi\u1ec1u d\u00e0i trong ngo\u1eb7c \u0111\u01a1n n\u1ebfu c\u00f3 th\u1ec3, v\u00ec ch\u00fang l\u00e0 c\u00e1c gi\u00e1 tr\u1ecb \u01b0u ti\u00ean th\u1ee9 c\u1ea5p.<\/p>\n

      Dung sai c\u1ea5p A ch\u1eb7t ch\u1ebd h\u01a1n (js15 cho l \u2264 150 mm, js17 cho l > 150 mm), ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c cao. C\u1ea5p B s\u1eed d\u1ee5ng js17 \u0111\u1ed3ng nh\u1ea5t, c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c. C\u1ea5p C \u00e1p d\u1ee5ng js17 cho l \u2264 150 mm v\u00e0 \u00b1IT17 cho k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n, d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng kinh t\u1ebf.<\/p>\n

      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Chi\u1ec1u d\u00e0i danh ngh\u0129a l (mm)<\/th>\nH\u1ea1ng A (mm)<\/th>\nC\u1ea5p \u0111\u1ed9 B (mm)<\/th>\nC\u1ea5p \u0111\u1ed9 C (mm)<\/th>\n<\/tr>\n
      <\/th>\nT\u1ed1i thi\u1ec3u<\/th>\nT\u1ed1i \u0111a<\/th>\nT\u1ed1i thi\u1ec3u<\/th>\nT\u1ed1i \u0111a<\/th>\nT\u1ed1i thi\u1ec3u<\/th>\nT\u1ed1i \u0111a<\/th>\n<\/tr>\n<\/thead>\n
      2<\/td>\n1.80<\/td>\n2.20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      (2.5)<\/td>\n2.30<\/td>\n2.70<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      3<\/td>\n2.80<\/td>\n3.20<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      4<\/td>\n3.76<\/td>\n4.24<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      5<\/td>\n4.76<\/td>\n5.24<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      6<\/td>\n5.76<\/td>\n6.24<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      (7)<\/td>\n6.71<\/td>\n7.29<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      8<\/td>\n7.71<\/td>\n8.29<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      (9)<\/td>\n8.71<\/td>\n9.29<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      10<\/td>\n9.71<\/td>\n10.29<\/td>\n9.25<\/td>\n10.75<\/td>\n9.25<\/td>\n10.75<\/td>\n<\/tr>\n
      (11)<\/td>\n10.65<\/td>\n11.35<\/td>\n10.10<\/td>\n11.90<\/td>\n10.10<\/td>\n11.90<\/td>\n<\/tr>\n
      12<\/td>\n11.65<\/td>\n12.35<\/td>\n11.10<\/td>\n12.90<\/td>\n11.10<\/td>\n12.90<\/td>\n<\/tr>\n
      (14)<\/td>\n13.65<\/td>\n14.35<\/td>\n13.10<\/td>\n14.90<\/td>\n13.10<\/td>\n14.90<\/td>\n<\/tr>\n
      16<\/td>\n15.65<\/td>\n16.35<\/td>\n15.10<\/td>\n16.90<\/td>\n15.10<\/td>\n16.90<\/td>\n<\/tr>\n
      (18)<\/td>\n17.65<\/td>\n18.35<\/td>\n17.10<\/td>\n18.90<\/td>\n17.10<\/td>\n18.90<\/td>\n<\/tr>\n
      20<\/td>\n19.58<\/td>\n20.42<\/td>\n18.95<\/td>\n21.05<\/td>\n18.95<\/td>\n21.05<\/td>\n<\/tr>\n
      (22)<\/td>\n21.58<\/td>\n22.42<\/td>\n20.95<\/td>\n23.05<\/td>\n20.95<\/td>\n23.05<\/td>\n<\/tr>\n
      25<\/td>\n24.58<\/td>\n25.42<\/td>\n23.95<\/td>\n26.05<\/td>\n23.95<\/td>\n26.05<\/td>\n<\/tr>\n
      (28)<\/td>\n27.58<\/td>\n28.42<\/td>\n26.95<\/td>\n29.05<\/td>\n26.95<\/td>\n29.05<\/td>\n<\/tr>\n
      30<\/td>\n29.58<\/td>\n30.42<\/td>\n28.95<\/td>\n31.05<\/td>\n28.95<\/td>\n31.05<\/td>\n<\/tr>\n
      (32)<\/td>\n31.50<\/td>\n32.50<\/td>\n30.75<\/td>\n33.25<\/td>\n30.75<\/td>\n33.25<\/td>\n<\/tr>\n
      35<\/td>\n34.50<\/td>\n35.50<\/td>\n33.75<\/td>\n36.25<\/td>\n33.75<\/td>\n36.25<\/td>\n<\/tr>\n
      (38)<\/td>\n37.50<\/td>\n38.50<\/td>\n36.75<\/td>\n39.25<\/td>\n36.75<\/td>\n39.25<\/td>\n<\/tr>\n
      40<\/td>\n39.50<\/td>\n40.50<\/td>\n38.75<\/td>\n41.25<\/td>\n38.75<\/td>\n41.25<\/td>\n<\/tr>\n
      45<\/td>\n44.50<\/td>\n45.50<\/td>\n43.75<\/td>\n46.25<\/td>\n43.75<\/td>\n46.25<\/td>\n<\/tr>\n
      50<\/td>\n49.50<\/td>\n50.50<\/td>\n48.75<\/td>\n51.25<\/td>\n48.75<\/td>\n51.25<\/td>\n<\/tr>\n
      55<\/td>\n54.40<\/td>\n55.60<\/td>\n53.50<\/td>\n56.50<\/td>\n53.50<\/td>\n56.50<\/td>\n<\/tr>\n
      60<\/td>\n59.40<\/td>\n60.60<\/td>\n58.50<\/td>\n61.50<\/td>\n58.50<\/td>\n61.50<\/td>\n<\/tr>\n
      65<\/td>\n64.40<\/td>\n65.60<\/td>\n63.50<\/td>\n66.50<\/td>\n63.50<\/td>\n66.50<\/td>\n<\/tr>\n
      70<\/td>\n69.40<\/td>\n70.60<\/td>\n68.50<\/td>\n71.50<\/td>\n68.50<\/td>\n71.50<\/td>\n<\/tr>\n
      (75)<\/td>\n74.40<\/td>\n75.60<\/td>\n73.50<\/td>\n76.50<\/td>\n73.50<\/td>\n76.50<\/td>\n<\/tr>\n
      80<\/td>\n79.40<\/td>\n80.60<\/td>\n78.50<\/td>\n81.50<\/td>\n78.50<\/td>\n81.50<\/td>\n<\/tr>\n
      (85)<\/td>\n84.30<\/td>\n85.70<\/td>\n83.25<\/td>\n86.75<\/td>\n83.25<\/td>\n86.75<\/td>\n<\/tr>\n
      90<\/td>\n89.30<\/td>\n90.70<\/td>\n88.25<\/td>\n91.75<\/td>\n88.25<\/td>\n91.75<\/td>\n<\/tr>\n
      (95)<\/td>\n94.30<\/td>\n95.70<\/td>\n93.25<\/td>\n96.75<\/td>\n93.25<\/td>\n96.75<\/td>\n<\/tr>\n
      100<\/td>\n99.30<\/td>\n100.70<\/td>\n98.25<\/td>\n101.75<\/td>\n98.25<\/td>\n101.75<\/td>\n<\/tr>\n
      (105)<\/td>\n104.30<\/td>\n105.70<\/td>\n103.25<\/td>\n106.75<\/td>\n103.25<\/td>\n106.75<\/td>\n<\/tr>\n
      110<\/td>\n109.30<\/td>\n110.70<\/td>\n108.25<\/td>\n111.75<\/td>\n108.25<\/td>\n111.75<\/td>\n<\/tr>\n
      (115)<\/td>\n114.30<\/td>\n115.70<\/td>\n113.25<\/td>\n116.75<\/td>\n113.25<\/td>\n116.75<\/td>\n<\/tr>\n
      120<\/td>\n119.30<\/td>\n120.70<\/td>\n118.25<\/td>\n121.75<\/td>\n118.25<\/td>\n121.75<\/td>\n<\/tr>\n
      (125)<\/td>\n124.20<\/td>\n125.80<\/td>\n123.00<\/td>\n127.00<\/td>\n123.00<\/td>\n127.00<\/td>\n<\/tr>\n
      130<\/td>\n129.20<\/td>\n130.80<\/td>\n128.00<\/td>\n132.00<\/td>\n128.00<\/td>\n132.00<\/td>\n<\/tr>\n
      140<\/td>\n139.20<\/td>\n140.80<\/td>\n138.00<\/td>\n142.00<\/td>\n138.00<\/td>\n142.00<\/td>\n<\/tr>\n
      150<\/td>\n149.20<\/td>\n150.80<\/td>\n148.00<\/td>\n152.00<\/td>\n148.00<\/td>\n152.00<\/td>\n<\/tr>\n
      160<\/td>\n159.20<\/td>\n160.80<\/td>\n158.00<\/td>\n162.00<\/td>\n158.00<\/td>\n162.00<\/td>\n<\/tr>\n
      (170)<\/td>\n169.20<\/td>\n170.80<\/td>\n168.00<\/td>\n172.00<\/td>\n166.00<\/td>\n174.00<\/td>\n<\/tr>\n
      180<\/td>\n179.20<\/td>\n180.80<\/td>\n178.00<\/td>\n182.00<\/td>\n176.00<\/td>\n184.00<\/td>\n<\/tr>\n
      (190)<\/td>\n189.10<\/td>\n190.90<\/td>\n187.70<\/td>\n192.30<\/td>\n185.40<\/td>\n194.60<\/td>\n<\/tr>\n
      200<\/td>\n199.10<\/td>\n200.90<\/td>\n197.70<\/td>\n202.30<\/td>\n195.40<\/td>\n204.60<\/td>\n<\/tr>\n
      220<\/td>\n219.10<\/td>\n220.90<\/td>\n217.70<\/td>\n222.30<\/td>\n215.40<\/td>\n224.60<\/td>\n<\/tr>\n
      240<\/td>\n239.10<\/td>\n240.90<\/td>\n237.70<\/td>\n242.30<\/td>\n235.40<\/td>\n244.60<\/td>\n<\/tr>\n
      260<\/td>\n–<\/td>\n–<\/td>\n257.40<\/td>\n262.60<\/td>\n254.80<\/td>\n265.20<\/td>\n<\/tr>\n
      280<\/td>\n–<\/td>\n–<\/td>\n277.40<\/td>\n282.60<\/td>\n274.80<\/td>\n285.20<\/td>\n<\/tr>\n
      300<\/td>\n–<\/td>\n–<\/td>\n297.40<\/td>\n302.60<\/td>\n294.80<\/td>\n305.20<\/td>\n<\/tr>\n
      320<\/td>\n–<\/td>\n–<\/td>\n317.15<\/td>\n322.85<\/td>\n314.30<\/td>\n325.70<\/td>\n<\/tr>\n
      340<\/td>\n–<\/td>\n–<\/td>\n337.15<\/td>\n342.85<\/td>\n334.30<\/td>\n345.70<\/td>\n<\/tr>\n
      360<\/td>\n–<\/td>\n–<\/td>\n357.15<\/td>\n362.85<\/td>\n354.30<\/td>\n365.70<\/td>\n<\/tr>\n
      380<\/td>\n–<\/td>\n–<\/td>\n377.15<\/td>\n382.85<\/td>\n374.30<\/td>\n385.70<\/td>\n<\/tr>\n
      400<\/td>\n–<\/td>\n–<\/td>\n397.15<\/td>\n402.85<\/td>\n394.30<\/td>\n405.70<\/td>\n<\/tr>\n
      420<\/td>\n–<\/td>\n–<\/td>\n416.85<\/td>\n423.15<\/td>\n413.70<\/td>\n426.30<\/td>\n<\/tr>\n
      440<\/td>\n–<\/td>\n–<\/td>\n436.85<\/td>\n443.15<\/td>\n433.70<\/td>\n446.30<\/td>\n<\/tr>\n
      460<\/td>\n–<\/td>\n–<\/td>\n456.85<\/td>\n463.15<\/td>\n453.70<\/td>\n466.30<\/td>\n<\/tr>\n
      480<\/td>\n–<\/td>\n–<\/td>\n476.85<\/td>\n483.15<\/td>\n473.70<\/td>\n486.30<\/td>\n<\/tr>\n
      500<\/td>\n–<\/td>\n–<\/td>\n496.85<\/td>\n503.15<\/td>\n493.70<\/td>\n506.30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

      Ch\u1ecdn \u0111\u1ed9 d\u00e0i d\u1ef1a tr\u00ean y\u00eau c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng, \u01b0u ti\u00ean c\u00e1c gi\u00e1 tr\u1ecb kh\u00f4ng n\u1eb1m trong ngo\u1eb7c \u0111\u01a1n \u0111\u1ec3 chu\u1ea9n h\u00f3a t\u1ed1i \u01b0u.<\/p>\n<\/div>\n

      \n

      Ti\u00eau chu\u1ea9n chi\u1ec1u d\u00e0i ren<\/h2>\n

      Chi\u1ec1u d\u00e0i ren (b) c\u1ee7a bu l\u00f4ng, v\u00edt v\u00e0 \u0111inh t\u00e1n \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n ISO 888:2012 v\u00e0 GB\/T 3106-2016, th\u1ec3 hi\u1ec7n ph\u1ea7n ren c\u1ee7a c\u00e1c chi ti\u1ebft l\u1eafp gh\u00e9p c\u00f3 ren m\u1ed9t ph\u1ea7n. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p c\u00e1c gi\u00e1 tr\u1ecb \u0111\u01b0\u1eddng k\u00ednh danh ngh\u0129a (d) t\u1eeb 1,6 mm \u0111\u1ebfn 160 mm, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo ph\u1ea1m vi t\u1ed5ng chi\u1ec1u d\u00e0i (l).<\/p>\n

      C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 \u0103n kh\u1edbp ren \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 si\u1ebft ch\u1eb7t an to\u00e0n \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u l\u01b0\u1ee3ng v\u1eadt li\u1ec7u s\u1eed d\u1ee5ng. \u0110\u1ec3 t\u00ednh to\u00e1n, h\u00e3y s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c n\u1ebfu gi\u00e1 tr\u1ecb trong b\u1ea3ng kh\u00f4ng \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea, v\u00e0 xem x\u00e9t vi\u1ec7c t\u1ea1o ren to\u00e0n ph\u1ea7n n\u1ebfu ph\u1ea7n th\u00e2n kh\u00f4ng c\u00f3 ren \u2264 0,5d.<\/p>\n

      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      \u0110\u01b0\u1eddng k\u00ednh danh ngh\u0129a d (mm)<\/th>\nl \u2264 125 (mm)<\/th>\n125 < l \u2264 200 (mm)<\/th>\nl > 200 (mm)<\/th>\n<\/tr>\n<\/thead>\n
      1.6<\/td>\n9<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      2<\/td>\n10<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      2.5<\/td>\n11<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      3<\/td>\n12<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      4<\/td>\n14<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      5<\/td>\n16<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      6<\/td>\n18<\/td>\n–<\/td>\n–<\/td>\n<\/tr>\n
      8<\/td>\n22<\/td>\n28<\/td>\n–<\/td>\n<\/tr>\n
      10<\/td>\n26<\/td>\n32<\/td>\n–<\/td>\n<\/tr>\n
      12<\/td>\n30<\/td>\n36<\/td>\n–<\/td>\n<\/tr>\n
      (14)<\/td>\n34<\/td>\n40<\/td>\n–<\/td>\n<\/tr>\n
      16<\/td>\n38<\/td>\n44<\/td>\n57<\/td>\n<\/tr>\n
      18<\/td>\n42<\/td>\n48<\/td>\n61<\/td>\n<\/tr>\n
      20<\/td>\n46<\/td>\n52<\/td>\n65<\/td>\n<\/tr>\n
      22<\/td>\n50<\/td>\n56<\/td>\n69<\/td>\n<\/tr>\n
      24<\/td>\n54<\/td>\n60<\/td>\n73<\/td>\n<\/tr>\n
      27<\/td>\n60<\/td>\n66<\/td>\n79<\/td>\n<\/tr>\n
      30<\/td>\n66<\/td>\n72<\/td>\n85<\/td>\n<\/tr>\n
      33<\/td>\n72<\/td>\n78<\/td>\n91<\/td>\n<\/tr>\n
      36<\/td>\n78<\/td>\n84<\/td>\n97<\/td>\n<\/tr>\n
      39<\/td>\n84<\/td>\n90<\/td>\n103<\/td>\n<\/tr>\n
      42<\/td>\n90<\/td>\n96<\/td>\n109<\/td>\n<\/tr>\n
      45<\/td>\n96<\/td>\n102<\/td>\n115<\/td>\n<\/tr>\n
      48<\/td>\n102<\/td>\n108<\/td>\n121<\/td>\n<\/tr>\n
      52<\/td>\n–<\/td>\n116<\/td>\n129<\/td>\n<\/tr>\n
      56<\/td>\n–<\/td>\n124<\/td>\n137<\/td>\n<\/tr>\n
      60<\/td>\n–<\/td>\n132<\/td>\n145<\/td>\n<\/tr>\n
      64<\/td>\n–<\/td>\n140<\/td>\n153<\/td>\n<\/tr>\n
      68<\/td>\n–<\/td>\n148<\/td>\n161<\/td>\n<\/tr>\n
      72<\/td>\n–<\/td>\n156<\/td>\n169<\/td>\n<\/tr>\n
      76<\/td>\n–<\/td>\n164<\/td>\n177<\/td>\n<\/tr>\n
      80<\/td>\n–<\/td>\n172<\/td>\n185<\/td>\n<\/tr>\n
      85<\/td>\n–<\/td>\n182<\/td>\n195<\/td>\n<\/tr>\n
      90<\/td>\n–<\/td>\n192<\/td>\n205<\/td>\n<\/tr>\n
      95<\/td>\n–<\/td>\n–<\/td>\n215<\/td>\n<\/tr>\n
      100<\/td>\n–<\/td>\n–<\/td>\n225<\/td>\n<\/tr>\n
      105<\/td>\n–<\/td>\n–<\/td>\n235<\/td>\n<\/tr>\n
      110<\/td>\n–<\/td>\n–<\/td>\n245<\/td>\n<\/tr>\n
      115<\/td>\n–<\/td>\n–<\/td>\n255<\/td>\n<\/tr>\n
      120<\/td>\n–<\/td>\n–<\/td>\n265<\/td>\n<\/tr>\n
      125<\/td>\n–<\/td>\n–<\/td>\n275<\/td>\n<\/tr>\n
      130<\/td>\n–<\/td>\n–<\/td>\n285<\/td>\n<\/tr>\n
      140<\/td>\n–<\/td>\n–<\/td>\n305<\/td>\n<\/tr>\n
      150<\/td>\n–<\/td>\n–<\/td>\n325<\/td>\n<\/tr>\n
      160<\/td>\n–<\/td>\n–<\/td>\n345<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

      S\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 \u0103n kh\u1edbp c\u1ee7a ren, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 trong thi\u1ebft k\u1ebf.<\/p>\n<\/div>\n

      \n

      Ghi ch\u00fa quan tr\u1ecdng v\u00e0 c\u00e1c ph\u00e9p t\u00ednh<\/h2>\n

      Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc khi \u00e1p d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y bao g\u1ed3m:<\/p>\n

        \n
      • T\u00ednh chi\u1ec1u d\u00e0i ren b tr\u1eeb khi c\u00f3 ch\u1ec9 \u0111\u1ecbnh kh\u00e1c: \u0110\u1ed1i v\u1edbi l \u2264 125 mm, b = 2d + 6 mm; \u0111\u1ed1i v\u1edbi 125 mm 200 mm, b = 2d + 25 mm.<\/li>\n
      • N\u1ebfu ph\u1ea7n th\u00e2n kh\u00f4ng ren \u2264 0,5d, h\u00e3y s\u1ea3n xu\u1ea5t v\u1edbi ph\u1ea7n th\u00e2n \u0111\u00e3 \u0111\u01b0\u1ee3c ren ho\u00e0n ch\u1ec9nh.<\/li>\n
      • Dung sai chi\u1ec1u d\u00e0i ren b theo ti\u00eau chu\u1ea9n ISO 4759-1: \u0110\u1ed1i v\u1edbi v\u00edt v\u00e0 \u0111inh t\u00e1n c\u00f3 r\u00e3nh ho\u1eb7c ch\u00ecm, +2P \/ 0 (trong \u0111\u00f3 P l\u00e0 b\u01b0\u1edbc ren).<\/li>\n
      • Tr\u00e1nh s\u1eed d\u1ee5ng \u0111\u1ed9 d\u00e0i danh ngh\u0129a trong ngo\u1eb7c \u0111\u01a1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh chu\u1ea9n h\u00f3a t\u1ed1t h\u01a1n.<\/li>\n
      • C\u00e1c quy \u0111\u1ecbnh n\u00e0y \u00e1p d\u1ee5ng cho ren h\u1ec7 m\u00e9t ISO theo ti\u00eau chu\u1ea9n ISO 68-1.<\/li>\n<\/ul>\n

        Nh\u1eefng ghi ch\u00fa n\u00e0y h\u01b0\u1edbng d\u1eabn qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t v\u00e0 l\u1ef1a ch\u1ecdn ch\u00ednh x\u00e1c, n\u00e2ng cao \u0111\u1ed9 tin c\u1eady trong c\u00e1c c\u1ee5m l\u1eafp r\u00e1p c\u01a1 kh\u00ed.<\/p>\n<\/div>\n

        \n

        C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n
          \n
        1. M\u1ee5c \u0111\u00edch c\u1ee7a vi\u1ec7c chu\u1ea9n h\u00f3a chi\u1ec1u d\u00e0i danh ngh\u0129a l\u00e0 g\u00ec?<\/strong>
          \nVi\u1ec7c ti\u00eau chu\u1ea9n h\u00f3a \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau, \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf v\u00e0 t\u1ed1i \u01b0u h\u00f3a s\u1ea3n xu\u1ea5t, gi\u1ea3m chi ph\u00ed v\u00e0 sai s\u00f3t trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p.<\/li>\n
        2. C\u00e1c lo\u1ea1i s\u1ea3n ph\u1ea9m c\u1ea5p A, B, C kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o v\u1ec1 dung sai?<\/strong>
          \nLo\u1ea1i A c\u00f3 dung sai ch\u1eb7t ch\u1ebd nh\u1ea5t v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c; lo\u1ea1i B mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c c\u00e2n b\u1eb1ng; lo\u1ea1i C c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c linh ho\u1ea1t h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed.<\/li>\n
        3. Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng \u1ed1c v\u00edt c\u00f3 ren to\u00e0n ph\u1ea7n?<\/strong>
          \nN\u1ebfu t\u00ednh to\u00e1n cho ra \u0111\u01b0\u1eddng k\u00ednh ph\u1ea7n th\u00e2n kh\u00f4ng ren \u2264 0,5d, h\u00e3y ch\u1ecdn ph\u01b0\u01a1ng \u00e1n ren to\u00e0n ph\u1ea7n \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 b\u1ec1n v\u00e0 s\u1ef1 \u0111\u01a1n gi\u1ea3n.<\/li>\n
        4. T\u1ea1i sao n\u00ean tr\u00e1nh ghi \u0111\u1ed9 d\u00e0i trong ngo\u1eb7c \u0111\u01a1n?<\/strong>
          \nCh\u00fang l\u00e0 nh\u1eefng l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean th\u1ee9 y\u1ebfu; vi\u1ec7c \u01b0u ti\u00ean \u0111\u1ed9 d\u00e0i kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c \u0111\u01a1n th\u00fac \u0111\u1ea9y t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 kh\u1ea3 n\u0103ng truy c\u1eadp.<\/li>\n
        5. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh chi\u1ec1u d\u00e0i ch\u1ec9 cho c\u00e1c k\u00edch th\u01b0\u1edbc kh\u00f4ng c\u00f3 trong b\u1ea3ng?<\/strong>
          \nS\u1eed d\u1ee5ng c\u00e1c c\u00f4ng th\u1ee9c: b = 2d + 6 mm (l \u2264 125 mm), b = 2d + 12 mm (125 200 mm).<\/li>\n
        6. Nh\u1eefng dung sai n\u00e0o \u00e1p d\u1ee5ng cho chi\u1ec1u d\u00e0i ren?<\/strong>
          \nTheo ti\u00eau chu\u1ea9n ISO 4759-1, \u0111\u1ed1i v\u1edbi v\u00edt v\u00e0 \u0111inh t\u00e1n c\u00f3 \u0111\u1ea7u ren, dung sai \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u00e1m ch\u1eafc; \u0111\u1ed1i v\u1edbi lo\u1ea1i c\u00f3 r\u00e3nh, dung sai l\u00e0 +2P \/ 0.<\/li>\n<\/ol>\n<\/div>\n

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

          Article Outline This guide details standards for nominal lengths and thread lengths of bolts, screws, and studs, based on ISO 888:2012 and related tolerances from ISO 4759-1. The structure is as follows: Introduction to Length Standards Nominal Length Standards Thread Length Standards Key Notes and Calculations Frequently Asked Questions (FAQ) Introduction to Length Standards Standards […]<\/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-5727","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\/5727","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=5727"}],"version-history":[{"count":2,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5727\/revisions"}],"predecessor-version":[{"id":5729,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/posts\/5727\/revisions\/5729"}],"wp:attachment":[{"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/media?parent=5727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/categories?post=5727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/korea-transmission.com\/vi\/wp-json\/wp\/v2\/tags?post=5727"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}