铣床中功牙的孔与螺丝过孔M1 M2 M3 M4 M5 M6 M7 M8 M9分别打多大啊?

铣床中功牙的孔与螺丝过孔M1 M2 M3 M4 M5 M6 M7 M8 M9分别打多大啊?
铣床中功牙的孔与螺丝过孔M1 M2 M3 M4 M5 M6 M7 M8 M9分别打多大啊?

铣床中功牙的孔与螺丝过孔M1 M2 M3 M4 M5 M6 M7 M8 M9分别打多大啊?
先分清是什么制,公制还是美制,是粗牙还是细牙.再确定孔径.
螺丝攻牙钻孔径和滚丝径对照表
公制粗螺纹 美制粗螺纹
规格 标准径 2级牙钻孔径 规格（UNC） 标准径 2级牙钻孔径
最大 最小
M1.0×0.25 0.75 0.785 0.729 NO.1-64(1.854) 1.55 1.582 1.425
M1.1×0.25 0.85 0.885 0.829 NO.2-56(2.184) 1.80 1.871 1.695
M1.2×0.25 0.95 0.985 0.985 NO.3-48(2.515) 2.10 2.146 1.941
M1.4×0.3 1.10 1.142 1.075 NO.4-40(2.845) 2.30 2.385 2.157
M1.6×0.35 1.25 1.321 1.221 NO.5-40(3.175) 2.60 2.697 2.487
M1.7×0.35 1.35 1.421 1.321 NO.6-32(3.505) 2.80 2.895 2.642
M1.8×0.35 1.45 1.521 1.421 NO8-32(4.166) 3.40 3.53 3.302
M2.0×0.4 1.60 1.679 1.567 NO.10-24(4.826) 3.90 3.962 3.683
M2.2×0.45 1.75 1.838 1.713 NO.12-24(5.486) 4.50 4.597 4.344
M2.3×0.4 1.90 1.979 1.867 1/4-20 5.10 5.257 4.979
M2.5×0.45 2.10 2.138 2.013 5/16-18 6.60 6.731 6.401
M2.6×0.45 2.20 2.238 2.113 3/8-16 8.00 8.153 7.798
M3.0×0.5 2.50 2.599 2.459 7/16-14 9.40 9.55 9.144
M3.0×0.6 2.40 2.440 2.280 1/2-13 10.80 11.023 10.592
M3.5×0.6 2.90 3.010 2.850 9/16-12 12.20 12.446 11.989
M4.0×0.7 3.30 3.422 3.242 5/8-11 13.60 12.868 13.386
M4.0×0.75 3.25 3.326 3.106 3/4-10 16.50 18.840 16.307
M4.5×0.75 3.80 3.878 3.688 7/8-9 19.50 19.761 19.177
M5.0×0.8 4.20 4.334 4.134 1 22.20 22.606 21.971
M5.0×0.9 4.10 4.170 3.930 1-1/8-7 25.00 25.349 24.638
M6.0×1.0 5.00 5.153 4.917 1-1/4-7 28.20 28.524 27.813
M7.0×1.0 6.00 6.153 5.917 1-3/8-6 30.80 31.115 30.353
M8.0×1.25 6.80 6.912 6.647 1-1/2-6 34.00 34.290 33.528
M9.0×1.25 7.80 7.912 7.647 1-3/4-5 39.50 39.827 38.964
M10×1.5 8.50 8.676 8.376 2-4-1/2 45.20 45.593 44.679
M11×1.5 9.50 9.676 9.376
M12×1.75 10.30 10.441 10.106
M14×2.0 12.00 12.210 11.835
M16×2.0 14.00 14.210 13.835
M18×2.5 15.50 15.744 15.294
M20×2.5 17.50 17.744 17.294
M22×2.5 19.50 19.744 19.294
M24×3.0 21.00 21.252 20.752
M27×3.0 24.00 24.252 23.752
M30×3.5 26.50 26.771 26.211
螺丝攻牙钻孔径和滚丝径对照表
公制细螺纹 美制细螺纹
规格 标准径 2级牙钻孔径 规格（UNC） 标准径 2级牙钻孔径
最大 最小 最大 最小
M1.0×0.2 0.80 0.821 0.783 NO.0-80(1.524) 1.25 1.305 1.182
M1.1×0.2 0.90 0.921 0.883 NO.1-72(1.854) 1.55 1.612 1.474
M1.2×0.2 1.00 1.021 0.983 NO.2-64(2.184) 1.85 1.912 1.756
M1.4×0.2 1.20 1.221 1.183 NO.3-56(2.515) 2.10 2.197 2.025
M1.6×0.2 1.40 1.421 1.383 NO.4-48(2.845) 2.40 2.458 2.271
M1.7×0.2 1.45 1.500 1.460 NO.5-44(3.175) 2.70 2.740 2.551
M1.8×0.2 1.60 1.621 1.583 NO.6-40(3.505) 2.90 3.022 2.820
M2.0×0.25 1.75 1.785 1.729 NO.8-36(4.166) 3.50 3.606 3.404
M2.2×0.25 1.95 1.985 1.929 NO.10-32(4.826) 4.10 4.165 3.963
M2.3×0.25 2.05 2.061 2.001 NO.12-28(5.846) 4.60 4.724 4.496
M2.5×0.35 2.20 2.221 2.121 1/4-28 5.50 5.588 5.360
M2.6×0.35 2.20 2.246 2.186 5/16-24 6.90 7.035 6.782
M3.0×0.35 2.70 2.721 2.621 3/8-24 8.50 8.636 8.382
M3.5×0.35 3.20 3.221 3.121 7/16-20 9.90 10.033 9.729
M4.0×0.5 3.50 3.599 3.459 1/2-20 11.50 11.607 11.329
M4.5×0.5 4.00 4.099 3.959 9/16-18 12.90 13.081 12.751
M5.0×0.5 4.50 4.599 4.459 5/8-18 14.50 14.681 14.351
M5.5×0.5 5.00 5.099 4.959 3/4-16 17.50 17.678 17.323
M6.0×0.75 5.30 5.378 5.188 7/8-14 20.50 20.675 20.270
M6.0×0.5 5.50 5.550 5.400 1-12 23.20 23.571 23.114
M7.0×0.75 6.30 6.378 6.188 1-1/8-12 26.50 26.746 26.289
M7.0×0.5 6.50 6.550 6.400 1-1/4-12 29.50 29.921 29.464
M8.0×1.0 7.00 7.153 6.917 1-3/8-12 32.80 33.096 32.639
M8.0×0.75 7.30 7.378 7.188 1-1/2-12 36.00 36.271 35.814
M8.0×0.5 7.50 7.520 7.400
M9.0×1.0 8.00 8.153 7.917
M9.0×0.75 8.30 8.378 8.188
M10×1.25 8.80 8.912 8.647
M10×1.0 9.00 9.153 8.917
M10×0.75 9.30 9.378 9.188
M10×0.5 9.50 9.520 9.400
M11×1.0 10.00 10.153 9.917
M11×0.75 10.30 10.378 10.188
M12×1.5 10.50 10.676 10.376
M12×1.25 10.80 10.912 10.647
M12×1.0 11.00 11.153 10.917
M12×0.5 11.50 11.520 11.400
M14×1.5 12.50 12.676 12.376
M14×1.0 13.00 13.153 12.917
M15×1.5 13.50 13.676 13.376
M15×1.0 14.00 14.153 13.917
M16×1.5 14.50 14.676 14.376
M16×1.0 15.00 15.153 14.917
M17×1.5 15.50 15.676 15.376
M17×1.0 16.00 16.153 15.917
M18×2.0 16.00 16.210 15.835
M18×1.5 16.50 16.676 16.376
M18×1.0 17.00 17.153 16.917
M20×2.0 18.00 18.210 17.835
M20×1.5 18.50 18.676 18.376
M20×1.0 19.00 19.153 18.917
M22×2.0 20.00 20.210 19.835
M22×1.5 20.50 20.676 20.376
M22×1.0 21.00 21.153 20.917
M24×2.0 22.00 22.210 21.835
M24×1.5 22.50 22.676 22.376
M24×1.0 23.00 23.153 22.917
M25×2.0 23.00 23.210 22.835
M25×1.5 23.50 23.676 23.376
M25×1.0 24.00 24.153 23.917
M26×1.5 24.50 24.676 24.376
M27×2.0 25.00 25.210 24.835
M27×1.5 25.50 25.676 25.376
M27×1.0 26.00 26.153 25.917
M28×2.0 26.00 26.210 25.835
M28×1.5 26.50 26.676 26.376
M28×1.0 27.00 27.153 26.917
M30×3.0 27.00 27.252 26.752
M30×2.0 28.00 28.210 27.835
M30×1.5 28.50 28.676 28.376
M30×1.0 29.00 29.153 28.917
M32×2.0 30.00 30.210 29.835
M32×1.5 30.50 30.676 30.376
M33×3.0 30.00 30.252 29.752
M33×2.0 31.00 31.210 30.835
M33×1.5 31.50 31.676 31.376
M35×1.5 33.50 33.676 33.376
M36×3.0 33.00 33.252 32.752
M36×2.0 34.00 34.210 33.835
M36×1.5 34.50 34.676 34.376

螺丝攻牙钻孔径和滚丝径对照表
公制挤压丝攻钻孔径 美制挤压丝攻钻孔径
规格 精度等级 规格（UNC） 精度等级
G4-G6 G7-G8 G9 G4-G6 G7-G8 G9
M1.0×0.25 0.86 0.88 － NO.2-56UNC 1.94 － －
M1.1×0.25 0.96 0.98 － NO.3-48 2.23 － －
M1.2×0.25 1.06 1.08 － NO.4-40 2.50 － －
M1.4×0.3 1.24 1.25 － NO.5-40 2.83 － －
M1.6×0.35 1.41 1.43 － NO.6-32 3.07 － －
M1.7×0.35 1.51 1.53 － NO.8-32 3.73 3.77 －
M1.8×0.35 1.61 1.63 － NO.10-24 4.24 4.3 －
M2.0×0.4 1.78 1.80 － NO.12-24 4.90 4.96 －
M2.2×0.45 1.95 1.98 － 1/4-20 － 5.72 －
M2.3×0.4 2.08 2.10 － 5/16-18 － 7.24 －
M2.5×0.45 2.25 2.28 － 3/8-16 － 8.74 8.81
M2.6×0.45 2.35 2.38 － 7/16-14 － 10.20 10.30
M3.0×0.5 2.73 2.75 － 1/2-13 － 11.27 11.82
M3.5×0.6 3.17 3.20 － NO.2-64UNF 1.97 － －
M4.0×0.7 3.62 3.65 3.69 NO.3-56 2.27 － －
M5.0×0.8 4.56 4.60 4.64 NO.4-48 2.56 － －
M6.0×1.0 5.45 5.50 5.55 NO.5-44 2.86 － －
M7.0×1.0 6.45 6.50 6.55 NO.6-40 3.16 － －
M8.0×1.25 7.31 7.38 7.44 NO.8-36 3.78 － －
M10×1.5 9.18 9.25 9.32 NO.10-32 4.39 4.43 －
M10×1.25 9.31 9.38 9.44 NO.12-28 4.99 5.04 －
M12×1.75 11.04 11.12 11.21 1/4-28 5.85 5.90 －
M12×1.25 11.31 11.38 11.44 5/16-24 7.36 7.41 －
3/8-24 － 9.00 －
7/16-20 － 10.48 10.54
1/2-20 － 12.07 12.13

美制特细螺纹 英制电器螺纹
规格 标准径 2级牙钻孔径 规格 钻孔径
最大 最小
NO.12-32 4.70 4.826 4.623 2BA 4.0-4.2
1/4 -32 5.60 5.690 5.486 3BA
5/16 -32 7.10 7.264 7.087 4BA 3.0-3.2
3/8 -32 8.70 8.865 8.661 5BA 2.7-2.8
7/16 -28 10.20 10.338 10.135 6BA 2.4-2.5
1/2 -28 11.80 11.938 11.709
9/16 -24 13.20 13.386 13.132
5/8 -24 14.80 14.986 14.732
3/4 -20 17.80 17.958 17.678
7/8 -20 21.00 21.133 20.853
1 -20 24.00 24.308 24.028

螺丝攻牙钻孔径和滚丝径对照表
英制螺纹 公制螺纹 针车用螺纹
规格(UNEF) 钻孔径 规格 滚丝径 规格 滚丝径
硬材 软材
W 1/8 - 40 2.65 2.60 M3×0.5 2.63-2.60 SM1/8-40 2.735-2.688
W 5/32 - 32 3.25 3.20 M3.0×0.6 2.56-2.53 SM1/8-44 2.769-2.722
W 3/16 - 24 3.75 3.70 M3.5×0.6 3.06-3.03 SM9/64-40 3.128-3.083
W 1/4 - 20 5.10 5.00 M4.0×0.7 3.49-3.45 SM11/64-40 3.855-3.805
W 5/16 - 18 6.60 6.50 M4.0×0.75 3.45-3.41 SM3/16-32 4.205-4.155
W 3/8 - 16 8.00 7.90 M4.5×0.75 3.96-3.92 SM3/16-28 4.143-4.093
W 7/16 - 14 9.40 9.30 M5.0×0.8 4.43-4.38 SM7/32-32 5.003-4.955
W 1/2 - 12 10.70 10.50 M5.0×0.9 4.36-4.31 SM15/64-28 5.325-5.570
W 9/16 - 12 12.30 12.00 M6.0×1.0 5.30-5.25 SM1/4-40 5.890-5.735
W 5/8 - 11 13.70 13.50 M7.0×1.0 6.30-6.25 SM1/4-28 5.721-5.366
W 3/4 - 10 16.70 16.50 M8.0×1.0 7.28-7.23 SM9/32-28 6.508-6.648
W 7/8 - 9 19.50 19.30 M8.0×1.25 7.12-7.07 SM11/32-28 8.092-8.432
W1 - 8 22.40 22.00 SM3/8-28 8.880-8.015
W 1-1/8 - 7 25.00 24.80 SM7/16-28 10.466-10.401
W 1 - 1/4 - 7 28.30 28.00 SM7/16-16 10.037-9.967
SM1/2-20 11.819-11.749
SM9/26-20 13.400-13.425

英制管螺纹 英制管螺纹 美制管螺纹
规格 标准径 钻孔径 规格 标准径 有交牙部之长度（最小）中之毋螺牙内径 标准长度（最小）中之毋螺牙内径 规格 钻孔径
最大 最小 使用绞刀时 不用绞刀时 NPT NPS
使用绞刀时 不用绞刀时
PS 1/16 - 28 6.50 6.632 6.490 PT 1/16 - 28 6.10 6.20 6.244 6.384 1/16 - 27 6.10 6.25 6.35
PS 1/8 - 28 8.50 8.637 8.495 PT 1/8 - 28 8.10 8.20 8.249 8.388 1/8 - 27 8.33 8.43 8.74
PS 1/4 - 19 11.40 11.549 11.341 PT 1/4 - 19 10.70 11.00 10.962 11.174 1/4 - 18 10.72 11.13 11.13
PS 3/8 - 19 15.00 15.054 14.846 PT 3/8 - 19 14.20 14.50 14.448 14.658 3/8 - 18 14.27 14.27 14.68
PS 1/2 - 14 18.50 18.773 18.489 PT 1/2 - 14 17.60 18.00 17.979 18.263 1/2 - 14 17.48 17.86 18.26
PS 3/4 -14 24.00 24.259 23.975 PT 3/4 - 14 23.00 23.50 23.378 23.663 3/4 - 14 22.63 23.01 23.42
PS 1 - 11 30.20 30.471 30.111 PT 1- 11 29.00 29.50 29.459 29.822 1 - 11-1/2 28.58 28.98 29.36
PS 1-1/4 - 11 38.80 39.132 38.772 PT 1-1/4 - 11 37.50 38.00 37.976 38.339 1-1/4-11-1/2 37.31 37.69 38.10
PS 1-1/2 - 11 44.80 45.025 44.665 PT 1-1/2 - 11 43.40 44.00 43.869 44.232 1-1/2-11-1/2 43.66 44.04 44.45
PS 2 - 11 56.50 56.836 56.476 PT 2 - 11 54.90 55.50 55.412 55.844 2 - 11 - 1/2 55.58 55.96 56.36