螺纹规格-美制、英制、公制对照表

螺纹规格-美制、英制、公制 序号 美制细牙UNF 规格型号 2A 外螺纹大径UNFUN 最大 最小 公差 2B内螺纹小径〔UN、UNF〕 最小 最大 公差 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 7/16\"-20 1/2\"-20 9/16\"-18 3/4\"-16 7/8\"-14 11/16-12 15/16-12 15/8-12 17/8-12 21/2-12 公制细牙 M10*1 M12*1.5 M14*1.5 M16*1.5 M18*1.5 M20*1.5 M22*1.5 M24*1.5 M26*1.5 11.079 12.667 14.252 19.012 22.184 26.944 33.294 41.229 47.579 63.452 10.874 12.461 14.031 18.773 21.923 26.655 33.005 40.940 47.290 63.162 0.206 0.206 0.221 0.239 0.262 0.290 0.290 0.290 0.290 0.290 9.728 11.328 12.751 17.323 20.269 24.689 31.039 38.989 45.339 61.214 10.033 11.608 13.081 17.678 20.676 25.146 31.496 39.446 45.796 61.671 6H内螺纹小径 0.305 0.279 0.330 0.356 0.406 0.457 0.457 0.457 0.457 0.457 6g外螺纹大径 9.974 11.968 13.968 15.968 17.968 19.968 21.968 23.968 25.968 9.794 11.732 13.732 15.732 17.732 19.732 21.732 23.732 25.732 0.180 0.236 0.236 0.236 0.236 0.236 0.236 0.236 0.236 8.917 10.376 12.376 14.376 16.376 18.376 20.376 22.376 24.376 9.157 10.676 12.676 14.676 16.676 18.676 20.676 22.676 24.676 0.240 0.300 0.300 0.300 0.300 0.300 0.300 0.300 0.300 - . word.zl-

- -

10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 M27*1.5 M30*1.5 M27*2 M30*2 M33*2 M36*2 M42*2 英制管螺纹 G1/8-28 G1/4-19 G3/8-19 G1/2-14 G3/4-14 G1-11 G11/4-11 G11/2-11 26.968 29.968 26.962 29.962 32.962 35.962 41.962 9.728 13.157 16.662 20.955 26.441 33.249 41.910 47.803 26.732 29.732 26.682 29.682 32.682 35.682 41.682 9.514 12.907 16.412 20.671 26.157 32.889 41.550 47.443 0.236 0.236 0.280 0.280 0.280 0.280 0.280 0.214 0.250 0.250 0.284 0.284 0.360 0.360 0.360 25.376 28.376 24.835 27.835 30.835 33.835 39.835 8.566 11.445 14.950 18.631 24.117 30.291 38.952 44.845 25.676 28.676 25.210 28.210 31.210 34.210 40.210 8.848 11.890 15.395 19.172 24.658 30.931 39.592 45.485 0.300 0.300 0.375 0.375 0.375 0.375 0.375 0.282 0.445 0.445 0.541 0.541 0.640 0.640 0.640 给大家分享一下 A

公制/美制/英制螺纹对照表

型美制螺纹〔UNF〕常用规格

外

螺

纹

内

螺

纹

-4

9/16\"-19

牙 14.28 13.08 -6 11/16''-16 17.46 16.1 -8 13/16''-16 20.64 19.28 -10 1''-14 25.40 23.57 -12 1(3/16)''-12 30.00 28.32 -16 1(7/16)''-12 36.51 34.67 -20 1(11/16)''-12 42.86 41.02 C型JIC37度美制UNF螺纹常用规格 -4 7/16〞-20 11.11 10.03 -5 1/2〞-20 12.70 11.32-6 9/16〞-18 44

14.28 13.08 -8 3/4〞-16 19.00 17.68 -10 7/8〞

-14 22.22 20.68 -12 1(1/16)\"-12 26.98 25.15 -16 1(5/16)\"-12 33.33 31.5 -20 1(5/8)\"-12 41.28 39.

-24 1(7/8)\"-12 47.62 45.8 -32 2(1/2)\"-12 63.5 61.67 英制圆柱管螺纹〔BSPP〕常用规格 -4 1/4〞-19 13.157 11.55 -6 3/8〞-19 16.662 14.95 -8 1/2〞-14 20.955 18.63 -12 3/4〞-14 26.441 24.11 -16 1〞-11 33.249 30.29 -20 1(1/4)''-11 41.91 38.95 英制圆锥管螺纹〔BSPT〕常用规

- . word.zl-

- -

格 基面大径 基准距离 1/4〞-19 13.157 6 3/8〞-19 16.662 6.4 1/2〞-14 20.955 8.2 3/4〞-14 26.441 9.5 1〞-11 33.249 10.4 1(1/4)''-11 41.91 12.7 美制圆锥管螺纹NPT〕 1/8〞-27 10.24 4 1/4〞-18 13.60 4 3/8〞-18 17.04 4.32

- . word.zl-

〔 - -

- . word.zl-

- -

- . word.zl-

- -

- . word.zl-

- -

- . word.zl-

- -

-14 21.22 4.48 3/4〞-14 26.57 4.75

- . word.zl-

1/2〞 - -

-11(1/2)〞 33.22 4.6 1(1/4)〞-11.5 41.96 4.83 - . word.zl-

1〞