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1、螺纹规格公制细螺纹公制标准螺纹规格标准径2 级螺纹内径规格标准径1 级-2 级螺纹内径上限下限上限下限M1*0.25 0.75 0.785 0.729 M1*0.20 0.8 0.821 0.783 M1.1*0.25 0.85 0.885 0.829 M1.1*0.20 0.9 0.921 0.883 M1.2*.25 0.95 0.985 0.929 M1.2*0.20 1 1.021 0.983 M1.4*0.3 1.1 1.142 1.075 M1.4*0.20 1.2 1.221 1.183 M1.6*0.35 1.25 1.321 1.221 M1.6*0.20 1.4 1.421
2、 1.383 M1.7*0.35 1.35 1.421 1.321 *M1.7*0.20 1.45 1.5 1.46 M1.8*0.35 1.45 1.521 1.421 M1.8*0.20 1.6 1.621 1.583 M2*0.4 1.6 1.679 1.576 M2*0.25 1.75 1.785 1.729 M2.2*0.45 1.75 1.838 1.713 M2.2*0.25 1.95 1.985 1.929 M2.3*0.4 1.9 1.979 1.867 *M2.3*0.25 2.05 2.016 2.001 M2.5*0.45 2.1 2.138 2.013 M2.5*0.
3、35 2.121 2.221 2.121 M2.6*0.45 2.2 2.238 2.113 *M2.6*0.35 2.2 2.246 2.186 M3*0.5 2.5 2.599 2.459 M3*0.35 2.7 2.721 2.621 *M3*0.6 2.4 2.44 2.28 M3.5*0.35 3.2 3.221 3.121 M3.5*0.6 2.9 3.01 2.85 M4*0.50 3.5 3.599 3.459 M4*0.7 3.3 3.422 3.242 M4.5*0.50 4 4.099 3.959 *M4*0.75 3.25 3.326 3.106 M5*0.50 4.5
4、 4.599 4.459 M4.5*0.75 3.8 3.878 3.688 M5.5*0.50 5 5.099 4.959 M5*0.8 4.2 4.334 4.134 M6*0.75 5.3 5.378 5.188 *M5*0.9 4.1 4.17 3.93 *M6*0.5 5.5 5.55 5.4 M6*1 5 5.153 4.917 M7*0.75 6.3 6.378 6.188 M7*1 6 6.153 5.917 *M7*0.50 6.5 6.55 6.4 M8*1.25 6.8 6.912 6.647 M8*1.0 7 7.153 6.917 M9*1.25 7.8 7.912
5、7.647 M8*0.75 7.3 7.378 7.188 M10*1.5 8.5 8.676 8.376 *M8*0.50 7.5 7.52 7.4 M11*1.5 9.5 9.676 9.376 M9*1.0 8 8.153 7.917 M12*1.75 10.3 10.441 10.106 M9*0.75 8.3 8.378 8.188 M14*2 12 12.21 11.835 M10*1.25 8.8 8.912 8.647 M16*2 14 14.21 13.835 M18*2.5 15.5 15.744 15.249 M20*2.5 17.5 17.744 17.249 M22*
6、2.5 19.5 19.744 19.249 M24*3 21 21.252 20.752 M27*3 24 24.252 23.752 M30*3.5 26.5 26.771 26.211 M33*3.5 29.5 29.771 29.211 M36*4 32 32.27 31.67 M39*4 35 35.27 34.67 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页，共 6 页 - - - - - - - - - M42*4.5 37.5 37.779 37.129
7、M45*4.5 40.5 40.779 40.129 M48*5 43 43.279 42.587 附* 号螺纹自学 968 年3 月删除公制细螺纹规格标准径2 级螺纹内径规格标准径1 级-2 级螺纹内径上限下限上限下限M10*1 9 9.153 8.917 M32*1.50 30.5 30.676 30.376 M10*0.75 9.3 9.378 9.188 M33*3 30 30.252 29.752 *M10*0.5 9.5 9.52 9.4 M33*2 31 31.21 30.835 M11*1 10 10.153 9.917 M33*1.50 31.5 31.676 31.376
8、M11*0.75 10.3 10.378 10.188 M35*1.50 33.5 33.676 33.376 M12*1.5 10.5 10.676 10.376 M36*3.0 33 33.252 32.752 M12*1.25 10.8 10.912 10.647 M36*2.0 34 34.21 33.835 M12*1 11 11.153 10.917 M36*1.50 34.5 34.676 34.376 *M12*0.5 11.5 11.52 11.4 M38*1.50 36.5 36.676 36.376 M14*1.5 12.5 12.676 12.376 M39*3 36
9、36.252 35.752 M14*1.0 13 13.153 12.917 M39*2 37 37.21 36.835 M15*1.5 13.5 13.676 13.376 M39*1.50 37.5 37.676 37.376 M15*1.0 14 14.153 13.917 M40*3 37 37.252 36.752 M16*1.50 14.5 14.676 13.917 M40*2 38 38.21 37.835 M16*1.0 15 15.153 14.376 M40*1.50 38.5 38.676 38.376 M17*1.50 15.5 15.676 14.917 M42*4
10、 38 38.27 37.67 M17*1.0 16 16.153 15.376 M42*3 39 39.252 38.752 M18*2.0 16 16.21 15.835 M42*2 40 40.21 39.835 M18*1.50 16.5 16.676 16.376 M42*1.50 40.5 40.676 40.376 M18*1.0 17 17.153 16.917 M45*4 41 41.27 40.67 M20*2.0 18 18.21 17.835 M45*3 42 42.252 41.752 M20*1.50 18.5 18.676 18.376 M45*2 43 43.2
11、1 42.835 M20*1.0 19 19.153 18.917 M45*1.50 43.5 43.676 43.376 M22*2 20 20.21 19.835 M48*4 44 44.27 43.67 M22*1.50 20.5 20.676 20.376 M48*3 45 45.252 44.752 M22*1.0 21 21.153 20.917 M48*2 46 46.21 45.835 M24*2.0 22 22.21 21.835 M48*1.50 46.5 46.676 46.376 M 24*1.50 22.5 22.676 22.376 M50*3 47 47.252
12、M24*1.0 23 23.153 22.917 M50*2 48 48.21 47.835 M25*2.0 23 23.21 22.835 M50*1.50 48.5 48.676 48.376 M25*1.50 23.5 23.676 23.376 M25*1.0 24 24.153 23.917 M26*1.50 24.5 24.676 24.376 M27*2.0 25 25.21 24.835 M27*1.50 25.5 25.676 25.376 M27*1.0 26 26.153 25.917 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - -
13、- - - - - - - 名师精心整理 - - - - - - - 第 2 页，共 6 页 - - - - - - - - - M28*2.0 26 26.21 25.835 M28*1.50 26.5 26.676 26.373 M28*1.0 27 27.153 26.917 M30*3.0 27 27.252 26.752 M30*2.0 28 28.21 27.835 M30*1.50 28.5 28.676 28.376 M30*1.0 29 29.153 28.917 M32*2.0 30 30.21 29.835 附* 号螺纹自学 968 年3 月删除惠式螺纹（旧英制牙）山数节
14、距换算表规格钻头径A 例B例山数 (25.4)节数*W18-40 2.65 2.6 100 0.254 *W532-32 3.25 3.2 880 0.3175 *w316-24 3.75 3.7 772 0.3518 W14-20 5.1 5 64 0.3969 W516-18 6.6 5 60 0.4233 W38-16 8 6.5 56 0.4536 W716-14 9.4 7.9 48 0.5292 W12-12 10.7 9.310.5 44 0.5773 W916-12 12.3 12 40 0.635 W58-11 13.7 13.5 36 0.7056 W34-10 16.7
15、16.5 32 0.7938 W78-9 19.5 19.3 28 0.9071 W1-8 22.4 22 24 1.0583 W18-7 25 24.8 20 1.27 W114 28.3 28 18 1.4111 W138-6 30.5 30.3 16 1.5875 W112-6 33.8 33.5 14 1.8143 W158-5 36 35.7 13 1.9538 W134-5 39.2 39 12 2.1167 W118-5 41.8 41.5 11 2.3091 W2-412 45 44.7 10 2.54牙套螺纹攻用9 2.8222 规格钻头径下孔径8 3.175 上限下限7 3
16、.6286 M3*0.5 3.1 3.2 3.12 6 4.2333 M4*0.7 4.2 4.3 4.17 5 5.08 M5*0.8 5.2 5.33 5.16 412 5.6444 M6*1 6.3 6.42 6.25 4 6.35 M8*1.25 8.4 8.52 8.31 312 7.2571 M10*1.5 10.5 10.62 10.37 312 7.8154 M10*1.25 10.4 10.52 10.31 3 8.4667 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - -
17、- 第 3 页，共 6 页 - - - - - - - - - M10*1 10.3 10.42 10.25 278 8.8348 M12*1.75 12.5 12.73 12.43 234 9.2364 M12*1.5 12.5 12.62 12.37 258 9.6762 M12*1.25 12.5 12.52 12.31 212 10.16 M14*2 14.5 14.83 14349 M14*1.5 14.5 14.62 14.37 M16*2 16.5 16.83 16.49 M16*1.5 16.5 16.62 16.37 M18*2.5 19 19.04 18.58 M18*1.
18、5 18.5 18.62 18.37 M20*2.5 21 21.04 20.58 M20*1.5 20.5 20.62 20.37美制粗螺纹英制管螺纹规格 UNC 外径2 级牙钻孔径规格标准径钻孔径标准径最大最小最大最小NO.164 （ 1.854 ）1.551.5821.452PS116-286.56.6326.49NO.2-56(2.184)1.81.8711.695PS18-288.58.6878.495NO.3-48(2.515)2.12.1461.941Ps14-1911.411.54911.341NO.4-40(2.845)2.32.3852.157PS38-191515.054
19、14.846NO.5-40(3.173)2.62.6792.487PS12-1418.518.73318.489NO.6-32(3.505)2.82.8952.642PS34-142424.25923.975NO.8-32(4.166)3.43.533.302PS14-1130.230.47130.111NO.10-24(4.826)3.93.9623.683PS1-14-1138.839.13238.772NO.12-24(5.486)4.54.5974.344PS1-12-1144.845.02544.66514-205.15.2574.979PS2-12-1156.556.83656.4
20、76516-186.66.7316.40138-1688.1537.793英制管螺纹716-149.49.559.144规格标准径标准长度之螺牙内径12-1310.811.02310.592使用铰刀时不用铰刀时916-1212.212.44611.989PT116-286.16.26.38458-1113.612.86813.386PT18-288.188.38834-1016.518.8416.307PT14-1910.71111.17478-919.519.76119.507PT38-1914.214.514.68518-822.222.60621.971PT12-1417.61318.2
21、631-18-72525.34924.6398PT34-142323.523.6631-14-728.228.52427.813PT14-112929.529.8221-38-630.831.11530.353PT1-14-1137.53838.3391-12-63434.2933.528PT1-12-1143.44444.232名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页，共 6 页 - - - - - - - - - 1-34-539.539.82738.964PT2-
22、2-1154.955.555.8441-4-1245.245.59344.679公制粗螺纹公制细螺纹规格标准径最大最小规格标准径最大最小规格标准径最大最小M1.0*0.25 0.75 0.785 0.729 M1.0*0.2 0.8 0.821 0.783 M15*1.0 14 14.353 13.917 M1.1*0.25 0.85 0.885 0.829 M1.1*0.2 0.9 0.921 0.883 M16*1.5 14.5 14.676 14.376 M1.2*0.25 0.95 0.985 0.929 M1.2*0.2 1 1.021 0.983 M16*1.0 15 15.153
23、 14.917 M1.4*0.3 1.1 1.142 1.075 M1.4*0.2 1.2 1.221 1.183 M17*1.5 15.5 15.676 15.376 M1.6*0.35 1.25 1.321 1.221 M1.6*0.2 1.4 1.421 1.383 M17*1.0 16 16.153 15.917M1.7*0.35 1.35 1.421 1.321 M1.7*0.2 1.45 1.5 1.46 M18*2.0 16 16.21 15.835 M1.8*0.35 1.45 1.521 1.421 M1.8*0.2 1.6 1.621 1.583 M18*1.5 16.5
24、16.676 16.376 M2.0*0.4 1.6 1.679 1.567 M2.0*0.25 1.75 1.785 1.729 M18*1.0 17 17.153 16.917 M2.2*0.45 1.75 1.888 1.713 M2.2*0.25 1.95 1.985 1.929 M20*2.0 18 18.21 17.835 M2.3*0.4 1.9 1.979 1.867 M2.3*0.25 2.05 2.061 2.001 M20*1.5 18.5 18.676 18.376 M2.5*0.45 2.1 2.138 2.013 M2.5*0.35 2.2 2.221 2.121
25、M20*1.0 19 19.153 18.917 M2.6*0.45 2.2 2.238 2.113 M2.5*0.35 2.2 2.246 2.186 M22*2.0 20 20.21 19.835 M3.0*0.5 2.5 2.599 2.459 M3.0*0.35 2.7 2.721 2.621 M22*1.5 20.5 20.676 20.376 M3.0*0.6 2.4 2.44 2.28 M3.5*0.35 3.2 3.221 3.121 M22*1.0 21 21.153 20.917 M3.5*0.6 2.9 3.01 2.85 M4.0*0.5 3.5 3.599 3.459
26、 M24*2.0 22 22.21 21.835 M4.0*0.7 3.8 3.422 3.242 M4.5*0.5 4 4.099 3.959 M24*1.5 22.5 22.676 22.376 M4.0*0.75 3.25 3.326 3.106 M5.0*0.5 4.5 4.599 4.459 M24*1.0 23 23.153 22.917 M4.5*0.7 3.8 3.878 3.688 M5.5*0.5 5 5.099 4.959 M25*2.0 23 23.21 22.835 M5*0.8 4.2 4.334 4.134 M6.0*0.75 5.3 5.378 5.188 M2
27、5*1.5 23.5 23.676 23.376 M5*0.9 4.1 4.17 3.98 M6.0*0.5 5.5 5.55 5.4 M25*1.0 24 24.153 23.917 M6*1.0 5 5.153 4.917 M7.0*0.75 6.3 6.378 6.188 M26*1.5 24.5 24.676 24.876 M7*1.0 6 6.153 5.917 M7.0*0.5 6.5 6.55 6.4 M27*2.0 25 25.21 24.735 M8*1.25 6.8 6.912 6.647 M8.0*1 7 7.153 6.917 M27*1.5 25.5 25.676 2
28、5.376 M9*1.25 7.8 7.912 7.647 M8.0*0.75 7.3 7.378 7.188 M27*1.0 26 26.153 25.735 M10*1.5 8.5 8.676 8.376 M8.0*0.5 7.5 7.52 7.4 M28*2.0 26 26.21 25.835 M11*1.5 9.5 9.676 9.376 M9.0*1 8 8.153 7.917 M28*1.5 26 26.676 26.376 M12*1.75 10.3 10.24 10.11 M9.0*0.75 8.3 8.378 8.188 M28*1.0 27 27.153 26.917 M1
29、4*2.0 12 12.21 11.84 M10*1.25 8.8 8.912 8.647 M30*3.0 27 27.252 26.752 M16*2.0 14 14.21 13.84 M10*1.0 9 9.153 8.917 M30*2.0 28 28.21 27.835 M18*2.5 15 15.144 15.29 M10*0.75 9.3 9.378 9.188 M30*1.0 28 28.676 28.376 M20*2.5 17 17.744 17.29 M10*0.5 9.5 9.52 9.4 M32*2.0 30 29.153 28.917 名师资料总结 - - -精品资料
30、欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 5 页，共 6 页 - - - - - - - - - M22*2.5 19 19.744 19.29 M11*1.0 10 10.153 9.917 M32*1.5 30 30.21 29.835 M24*3.0 21 21.252 20.75 M11*0.75 10.3 10.378 10.19 M33*3.0 30 30.676 30.376 M27*3.0 24 24.252 23.75 M12*1.5 10.5 10.676 10.38 M33*2.0 31
31、 30.252 29.752 M30*3.5 26.5 26.771 26.21 M12*1.25 10.8 10.912 10.65 M33*1.5 31.5 31.21 30.835M12*1 11 11.153 10.92 M35*1.5 33.5 33.676 31.376 M12*0.5 11.5 11.523 11.4 M36*3.0 33 33.252 32.752 M14*0.5 12.5 12.676 12.38 M36*2.0 34 34.21 33.835 M14*1.0 13 13.153 12.92 M36*1.5 34 34.676 34.376 M15*1.50 13.5 13.676 13.38名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 6 页，共 6 页 - - - - - - - - -