螺纹底孔表

公制细螺纹
规格 标准径 2级牙钻孔径 最大 最小
11.153 10.917 11.520 11.400 12.676 12.376 13.153 12.917 13.676 13.376 14.153 13.917 14.676 14.376 15.153 14.917 15.676 15.376 16.153 15.917 16.210 15.835 16.676 16.376 17.153 16.917 18.210 17.835
RH7.8
6.35 8.74 11.13 14.68 18.26 23.42 29.36 38.10 44.45 56.36
英制螺纹滚造径
规格
W 3/16-24 W 1/4-20 W 5/16-18 W 3/8-16 W 7/16-14 W 1/2-12 W 9/16-12
滚造径
4.08-4.05 5.51-5.46 7.01-6.95 8.42-8.41 9.92-8.85 11.31-11.24 12.89-12.82
最小
1.426 1.695 1.941 2.157 2.487 2.642 3.302 3.683 4.344 4.979 6.401 7.798 9.144 10.592 11.989 13.386 16.307 19.177 21.971 24.638 27.813 30.353 33.628 38.964 44.679
英制螺纹
钻孔径 规格 最小
4.623 5.486 7.087 8.661 10.135 11.709 13.132 14.732 17.678 20.853 24.028 W 1/8-40 W 5/32-32 W 3/16-24 W 1/4-20 W 5/16-18 W 3/8-16 W 7/16-14 W 1/2-12 W 9/16-12 W 5/8-11 W 3/4-10 W 7/8-9 W 1-8 W 1-1/8-7 W 1-1/4-7
1.55 1.80 2.10 2.30 2.60 2.80 3.40 3.90 4.50 5.10 6.60 8.00 9.40 10.80 12.20 13.60 16.50 19.50 22.20 25.00 28.20 30.80 34.00 39.50 45.20 1.582 1.871 2.146 2.385 2.697 2.895 3.530 3.962 4.597 5.257 6.731 8.153 9.550 11.023 12.446 12.868 16.840 19.761 22.606 25.349 28.524 31.115 34.290 39.827 45.593
美制管螺纹
钻孔径 规格 使用铰 不使 刀 用铰
6.10 8.33 10.72 14.27 17.48 22.63 28.58 37.31 43.66 55.58 6.25 8.43 11.13 14.27 17.86 23.01 18.98 37.69 44.04 55.96
美制粗螺纹
3级牙钻孔径 规格 标准径 最大
美制特细螺纹
3级牙钻孔径 规格 标准径 最大
4.70 5.60 7.10 8.70 10.20 11.80 13.20 14.80 17.80 21.00 24.0 4.826 5.690 7.264 8.865 10.338 11.938 13.386 14.986 17.958 21.133 24.308
最小
0.729 0.829 0.929 1.075 1.221 1.321 1.421 1.667 1.713 1.667 2.013 2.113 2.459 2.280 2.850 3.242 3.108 3.688 4.134 3.930 4.917 5.917 6.647 7.647 8.376 9.376 10.706 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 M12*1.0 M12*0.5 M14*1.5 M14*1.0 M15*1.5 M15*1.0 M16*1.5 M16*1.0 M17*1.5 M17*1.0 M18*2.0 M18*1.5 M18*1.0 M20*2.0 M20*1.5 M20*1.0 M22*2.0 M22*1.5 M22*1.0 M24*2.0 M24*1.5 M24*1.0 M25*2.0 M25*1.5 M25*1.0 M26*1.5 M27*2.0 M27*1.5 M27*1.0 M28*2.0 M28*1.5 M28*1.0 M30*3.0 M30*2.0 M30*1.5 M30*1.0 11.00 11.5 12.5 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.00 16.50 17.00 18.00
公制粗螺纹
2级牙钻孔径 规格
M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.0*0.6 M3.5*0.6 M4.0*0.7 M4.0*0.75 M4.5*0.75 M5.0*0.8 M6.0*0.8 M6.0*1.0 M7.0*1.0 M8.0*1.25 M9.0*1.25 M10*1.5 M11*1.5 M12*1.75 M14*2.0 M16*2.0 M18*2.5 M20*2.5 M22*2.5 M24*3.0 M27*3.0 M30*3.5
11.40 10.962 11.174 15.00 14.448 14.658 18.50 17.979 13.263 24.00 23.378 23.663 30.20 29.459 29.822 38.80 37.976 38.339 44.80 43.869 44.232 56.5 55.412 55.844
美制细螺纹
3级牙钻孔径 规格 标准径 最大 最小
NO.0-80(1.524) NO.1-72(1.854) NO.2-64(2.184) NO.3-56(2.615) NO.4-48(2.845) NO.5-44(3.175) NO.6-40(3.505) NO.8-36(4.166) NO.10-32(4.826) NO.12-28(5.846) 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1-1/8-12 1-1/4-12 1-3/8-12 1-1/2-12 1.25 1.55 1.85 2.10 2.40 2.70 2.90 3.50 4.10 4.60 5.50 6.90 8.50 9.90 11.50 12.90 14.50 17.50 20.50 23.20 26.50 29.50 32.80 36.0 1.305 1.612 1.912 2.197 2.458 2.740 3.022 3.606 4.165 4.724 5.588 7.035 8.636 1.182 1.474 1.756 2.025 2.271 2.551 2.820 3.404 3.963 4.496 5.360 6.782 8.382 NO.12-32 1/4-32 5/16-32 3*8-32 7/16-28 1/2-28 9/16-24 5/8-24 3/4-20 7/8-20 1-20
硬材 软材
2.65 3.25 3.75 5.10 6.60 8.00 9.40 10.70 12.30 13.70 16.70 19.50 22.40 25.00 28.30 2.60 3.20 3.70 5.00 6.50 7.90 9.30 10.50 12.00 13.50 16.50 19.30 PT 1/16-28 PT 1/8-28 PT 1/4-19 PT 3/8-19 PT 1/2-14 PT 3/4-14 PT 1-11 PT1-1/4-11 PT1-1/2-11 PT2-11
英制管螺纹
标准径 规格 使用铰 不使 刀 用铰
6.10 8.10 10.70 14.20 17.60 23.00 29.00 37.50 43.40 54.90 6.20 8.50 6.244 8.249 6.384 8.388
标准径 最大
0.76 0.85 0.95 1.10 1.25 1.35 1.46 1.60 1.75 1.90 2.10 2.20 2.50 2.40 2.90 3.3. 3.25 3.80 4.20 4.10 5.00 6.00 6.80 7.80 8.50 9.50 10.30 12.00 14.00 15.50 17.50 19.50 21.00 24.00 26.50 0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.678 1.838 1.979 2.138 2.238 2.599 2.440 3.010 3.422 3.326 3.878 4.334 4.170 5.153 6.153 6.912 7.912 8.676 9.676 10.441 12.210 14.210 15.744 17.744 19.744 21.252 24.252 26.771
丝攻钻孔径
精度等级 规格
RH4.5.6 M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.3 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.4 M2.2*0.45 M2.3*0.4 M2.5*0.45 M2.6*0.45 M3.0*0.5 M3.5*0.6 M4.0*0.7 M5.0*0.8 M6.0*1.0 M7.0*1.0 M8.0*1.25 M10*1.5 M10*1.25 M12*1.75 M12*1.25 0.86 0.96 1.06 1.24 1.41 1.51 1.61 1.78 1.95 2.08 2.25 2.35 2.73 3.17 3.62 4.56 5.45 6.45 7.31 9.18 9.31 11.04 11.31
NPS
22.00 24.80 28.00 1/16-27 1/8-27 1/4-18 3/8-18 1/2-14 3/4-14 1-11-1/2 1-1/4-11-1/2 1-1/2-11-1/2 2-11-1/2
10.033 9.729 11.607 11.329 NO.1-64(1.854) 13.081 12.751 NO.2-56(2.184) 14.681 14.351 NO.3-48(2.615) 17.678 17.323 NO.4-40(2.845) 20.675 20.270 NO.5-40(3.175) 23.571 23.114 NO.6-32(3.505) 26.746 26.289 NO.8-32(4.166) 29.921 29.464 NO.10-24(4.826) 33.096 32.639 NO.12-24(5.486) 36.270 35.814 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1-1/8-7 1-1/4-7 1-3/8-6 1-1/2-6 1-3/4-5 2-4-1/2
英制粗螺纹
规格
NO.5-40 NO.6-32 NO.8-32 NO.10-24 NO.12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2来自百度文库13 9/16-12
滚造径
2.70-2.67 2.80-2.91 3.60-3.57 4.09-4.05 4.75-4.70 5.50-5.45 6.98-6.93 8.45-8.40 9.89-9.83 11.39-11.32 12.87-12.80