螺纹攻牙钻孔径和滚造径对照表

螺纹攻牙钻孔径和滚造径对照表
*********本表依据二级牙制定
公制粗螺纹 规格 M1.0*0.25 M1.1*0.25 M1.2*0.25 M1.4*0.30 M1.6*0.35 M1.7*0.35 M1.8*0.35 M2.0*0.40 M2.2*0.45 M2.3*0.40 M2.5*0.45 M2.6*0.45 M3.0*0.50 M3.0*0.60 M3.5*0.60 M4.0*0.70 M4.0*0.75 M4.5*0.75 M5.0*0.80 M5.0*0.90 M6.0*1.00 M7.0*1.00 M8.0*1.25 M9.0*1.25 M10*1.50 M11*1.50 M12*1.75 M14*2.00 M16*2.00 M18*2.50 M20*2.50 M22*2.50 M24*3.00 M27*3.00 M30*3.50 标准径 0.75 0.85 0.95 1.10 1.25 1.35 1.45 1.60 1.75 1.90 2.10 2.20 2.50 2.40 2.90 3.30 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 二级牙钻孔径 最大 0.785 0.885 0.985 1.142 1.321 1.421 1.521 1.679 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 最小 0.729 0.829 0.929 1.075 1.221 1.321 1.421 1.567 1.713 1.867 2.013 2.113 2.459 2.280 2.850 3.242 3.106 3.688 4.134 3.930 4.917 5.917 6.647 7.647 8.376 9.376 10.106 11.835 13.835 15.294 17.294 19.294 20.752 23.752 26.211 规格 M12*1.00 M12*0.50 M14*1.50 M14*1.00 M15*1.50 M15*1.00 M16*1.50 M16*1.00 M17*1.50 M17*1.00 M18*2.00 M18*1.50 M18*1.00 M20*2.00 M20*1.50 M20*1.00 M22*2.00 M22*1.50 M22*1.00 M24*2.00 M24*1.50 M24*1.00 M25*2.00 M25*1.50 M25*1.00 M26*1.50 M27*2.00 M27*1.50 M27*1.00 M28*2.00 M28*1.50 M28*1.00 M30*3.00 M30*2.00 M30*1.50 M30*1.00 二级牙钻孔径 最大 0.821 0.921 1.021 1.221 1.421 1.500 1.621 1.785 1.985 2.061 2.221 2.246 2.721 3.221 3.599 4.099 4.599 5.099 5.378 5.550 6.378 6.550 7.153 7.378 7.520 8.153 8.378 8.912 9.153 9.378 9.520 10.153 10.378 10.676 10.912 最小 0.783 0.883 0.983 1.183 1.383 1.460 1.583 1.729 1.929 2.001 2.121 2.186 2.621 3.121 3.459 3.959 4.459 4.959 5.188 5.400 6.188 6.400 6.917 7.188 7.400 7.917 8.188 8.647 8.917 9.188 9.400 9.917 10.188 10.376 10.647 N0.0-80(1.524) NO.1-72(1.854) NO.2-64(2.184) NO.3-56(2.515) NO.4-48(2.845) NO.5-44(3.175) NO.6-40(3.505) NO.8-36(4.166) NO.10-32(4.326) 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\8-12 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 32.00 36.00 规格(UNF) 美制细螺纹 标准径 二级牙钻孔径 最大 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 10.033 11.607 13.081 14.681 17.678 20.675 23.571 26.746 29.921 33.096 36.271 最小 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 9.729 11.329 12.751 14.351 17.323 20.270 23.114 26.289 29.464 32.639 35.814 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 4.70 5.60 7.10 8.70 10.20 11.80 13.20 14.80 17.80 21.00 24.00 规格(UNEF) 美制特细螺纹 标准径 二级牙钻孔径 最大 4.826 5.690 7.264 8.865 10.338 11.938 13.386 14.986 17.958 21.133 24.308 最小 4.623 5.486 7.087 8.661 10.135 11.709 13.132 14.732 17.678 20.853 24.028 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 规格 最大 6.100 8.380 10.720 14.270 17.480 22.630 28.580 37.310 43.660 55.580 NPT 最小 6.250 8.430 11.130 14.270 17.860 23.010 28.980 37.690 44.040 55.960 6.350 8.740 11.130 14.680 18.260 23.420 29.360 38.100 44.450 56.360 规格 2BA 3BA 4BA 5BA 6BA 英制电器螺纹 钻孔径 4-4.2 ? 3-3.2 2.7-2.8 2.4-2.5 美制管螺纹 钻孔径 NPS M32*2.00 M32*1.50 M33*3.00 M33*2.00 M33*1.50 M35*1.50 M36*3.00 M36*2.00 M36*1.50 公制细螺纹 标准径 11.00 11.50 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.00 16.50 17.00 18.00 18.50 19.00 20.00 20.50 21.00 22.00 22.50 23.00 23.00 23.50 24.00 24.50 25.00 25.50 26.00 26.00 26.50 27.00 27.00 28.00 28.50 29.00 30.00 30.50 30.00 31.00 31.50 33.50 33.00 34.00 34.50 二级牙钻孔径 最大 11.153 11.520 12.676 13.153 13.676 14.153 14.676 15.153 15.676 16.153 16.210 16.676 17.153 18.210 18.676 19.153 20.210 20.676 21.153 22.210 22.676 23.153 23.210 23.676 24.153 24.676 25.210 25.676 26.153 26.210 26.676 27.153 27.252 28.210 28.676 29.153 30.210 30.676 30.252 31.210 31.676 33.676 33.252 34.210 34.676 最小 10.917 11.400 12.376 12.917 13.376 13.917 14.376 14.917 15.376 15.917 15.835 16.376 16.917 17.835 18.376 18.917 19.835 20.376 20.917 21.835 22.376 22.917 22.835 23.376 23.917 24.376 24.835 25.376 25.917 25.835 26.376 26.917 26.752 27.835 28.376 28.917 29.835 30.376 29.752 30.835 31.376 33.376 32.752 33.835 34.376 NO.1-64(1.854) NO.2-56(2.184) NO.3-48(2.515) NO.4-40(2.845) NO.5-40(3.173) NO.6-32(3.505) NO.8-32(4.166) NO.10-24(4.826) NO.12-24(5.486) 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\8-8 1-1\8-7 1-1\4-7 1-3\8-6 1-1\2-6 1-3\4-5 2-4-1\2 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 规格(UNC) 美制粗螺纹 标准径 二级牙钻孔径 最大 1.582 1.871 2.146 2.385 2.679 2.895 3.530 3.962 4.597 5.257 6.731 8.153 9.550 11.023 12.446 12.868 18.840 19.761 22.606 25.349 28.524 31.115 34.290 39.827 45.593 最小 1.452 1.695 1.941 2.157 2.487 2.642 3.302 3.683 4.344 4.979 6.401 7.793 9.144 10.592 11.989 13.386 16.307 19.177 21.971 24.638 27.813 30.353 33.528 38.964 44.679 规格 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 PT 1-1\4-11 PT 1-1\2-11 PT 2-11 英制管螺纹 标准径 最大 6.10 8.10 10.70 14.20 17.60 23.00 29.00 37.50 43.40 54.90 最小 6.20 8.20 11.00 14.50 18.00 23.50 29.50 38.00 44.00 55.50 ？ 6.244 8.249 10.962 14.448 17.979 23.378 29.459 37.976 43.869 55.412 ？ 6.384 8.388 11.174 14.658 18.263 23.663 29.822 38.339 44.232 55.844 规格 M3.0*0.50 M3.0*0.60 M3.5*0.60 M4.0*0.70 M4.0*0.75 M4.5*0.75 M5.0*0.80 M5.0*0.90 M6.0*1.00 M7.0*1.00 M8.0*1.00 M8.0*1.25 PS 1\16-28 PS 1\8-28 PS 1\4-19 PS 3\8-19 PS 1\2-14 PS 3\4-14 PS 1-11 PS 1-1\4-11 PS 1-1\2-11 PS 2-11 6.50 8.50 11.40 15.00 18.50 24.00 30.20 38.80 44.80 56.50 规格 英制管螺纹 标准径 最大 6.632 8.637 11.549 15.054 18.773 24.259 30.471 39.132 45.025 56.836 钻孔径 最小 6.49 8.50 11.34 14.85 18.49 23.98 30.11 38.77 44.67 56.48 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 M3.5*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 公制迫牙丝攻钻孔径 精度等级 G1-G6 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 G7-G8 0.88 0.98 1.08 1.25 1.43 1.53 1.63 1.80 1.98 2.10 2.28 2.38 2.75 3.20 3.65 4.60 5.50 6.50 7.38 9.25 9.38 11.12 11.38 G9 … … … … … … … … … … … … … … 3.69 4.64 5.55 6.55 7.44 9.32 9.44 11.21 11.44 规格 NO.2-56UNC NO.3-48 NO.4-40 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\2-13 NO.2-64UNF NO.3-56 NO.4-48 NO.5-44 NO.6-40 NO.8-36 NO.10-32 NO.12-28 1\4-28 5\16-24 3\8-24 7\16-20 1\2-20 美制迫牙丝攻钻孔径 精度等级 G1-G6 1.94 2.23 2.50 2.83 3.07 3.78 4.24 4.90 … … … … … 1.97 2.27 2.56 2.86 3.16 3.78 4.39 4.99 5.85 7.36 … … … G7-G8 … … … … … 3.77 4.30 4.96 5.72 7.24 8.74 10.20 11.27 … … … … … … 4.43 5.04 5.90 7.41 9.00 10.48 12.07 G9 … … … … … … … … … … 8.81 10.30 11.82 … … … … … … … … … … … 10.54 12.13 规格 SM1/8-40 SM1/8-44 SM9/64-40 SM11/64-40 SM3/16-32 SM3/16-28 SM7/32-32 SM15/64-28 SM1/4-40 SM1/4-28 SM9/32-28 SM11/32-28 SM3/8-28 SM7/16-28 SM7/16-16 SM1/2-20 SM9/26-20 针车用螺纹 滚造径 2.735-2.688 2.769-2.722 3.128-3.083 3.855-3.805 4.205-4.155 4.143-4.093 5.003-4.955 5.325-5.570 5.890-5.735 5.721-5.366 6.508-6.648 8.092-8.432 8.880-8.015 10.466-10.401 10.037-9.967 11.819-11.749 13.400-13.425 规格 W1/8-40 W5/32-32 W3/16-24 W1/4-20 W5/16-18 W3/8-16 W7/16-14 W1/2-12 W9/16-12 W5/8-11 W3/4-10 W7/8-9 W1-8 W1-1/8-7 .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 软材 2.60 3.20 3.70 5.00 6.50 7.90 9.30 10.50 12.00 13.50 16.50 19.30 22.00 24.80 28.00