公制螺纹参数简明表 | 标准螺纹 | 外螺纹大径 | 内螺纹小径 | M12*1,25 | 12 | 11,647 | M12*1,25 | 12 | 11,376 | M12*1,75 | 12 | 10,106 | M14*1,5 | 14 | 12,376 | M14*2 | 14 | 11,835 | M16*1,5 | 16 | 14,376 | M16*2 | 16 | 13,835 | M18*1,5 | 18 | 16,376 | M18*2 | 18 | 15,835 | M18*2,5 | 18 | 15,294 | M20*1,5 | 20 | 18,376 | M20*2 | 20 | 17,835 | M20*2,5 | 20 | 17,294 | M22*1,5 | 22 | 20,376 | M22*2 | 22 | 19,835 | M22*2,5 | 22 | 19,294 | M27*1,5 | 27 | 25,376 | M27*2 | 27 | 24,835 | M27*3 | 27 | 23,752 | M30*1,5 | 30 | 28,376 | M30*2 | 30 | 27,835 | M30*3,5 | 30 | 26,211 | M33*1,5 | 33 | 31,376 | M33*2 | 33 | 30,835 | M33*3,5 | 33 | 29,211 | M36*2 | 36 | 33,835 | M36*3 | 36 | 32,752 | M36*4 | 36 | 31,670 | M39*2 | 39 | 36,835 | M39*3 | 39 | 35,752 | M39*4 | 39 | 34,670 | M45*2 | 45 | 42,835 | M45*3 | 45 | 41,752 | M45*4,5 | 45 | 40,129 | M52*2 | 52 | 49,835 | M52*3 | 52 | 48,752 | M52*5 | 52 | 46,587 | M64*2 | 64 | 61,835 |
常用美标螺纹技术参数简明表(UNF) | 标准螺纹 | 外螺纹大径 | 内螺纹小径 | 1/4'-28 | 6.35 | 5.367 | 5/6'-24 | 7.938 | 6.792 | 3/8'-24 | 9.525 | 8.379 | 7/16'-20 | 11.112 | 9.738 | 1/2”-20 | 12.7 | 11.326 | 9-16'-18 | 14.288 | 12.761 | 5/8'-18 | 15.875 | 14.348 | 3/4'-16 | 19.050 | 17.33 | 7/8'-14 | 22.225 | 20.262 | 1'-12 | 25.400 | 23.109 | 1-1/16'-12 | 26.980 | 24.69 | 1-1/8”-12 | 28.575 | 26.284 | 1-1/4'-12 | 31.750 | 29.459 | 1-5/16'-12 | 33.330 | 31.04 | 1-3/8'-12 | 34.925 | 32.634 | 1-1/2'-12 | 38.100 | 35.809 |
常用英制螺纹技术参数简明表(BSP) | 标准规格 | 外螺纹大径 | 内螺纹小径 | 1/8”-28 | 9,728 | 8,566 | 1/4'-19 | 13,157 | 11,445 | 3/8'-19 | 16,662 | 14,950 | 1/2'-14 | 20,955 | 18,631 | 3/4'-14 | 26,441 | 24,117 | 1'-11 | 33,249 | 30,291 | 1-1/4'-11 | 41,910 | 38,952 | 1-1/2'-11 | 47,803 | 44,845 |
常用美标锥螺纹参数简明表(NPT) | 标准规格 | 外螺纹大径 | 内螺纹小径 | 1/16'-27 | 7,895 | 6,389 | 1/8'-27 | 10,272 | 8,766 | 1/4'-18 | 13,572 | 11,314 | 3/8'-18 | 17,055 | 14,797 | 1/2'-14 | 21,223 | 18,321 | 3/4'-14 | 26,568 | 23,666 | 1'-11,5 | 33,228 | 29,694 | 1-1/4'-11,5 | 41,985 | 38,451 |
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