公制美制英制针车及英制电器螺丝攻牙钻孔径和滚造径对照表.pdf

公制美制英制针车及英制电器螺丝攻牙钻孔径和滚造径对照表1.公制粗螺纹规格标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小M1.0*0.25 0.75 0.785 0.729 M5.0*0.8 4.2 4.334 4.134 M1.1*0.25 0.85 0.885 0.829 M6.0*1.0 5 5.153 4.917 M1.2*0.25 0.95 0.985 0.929 M7.0*1.0 6 6.153 5.917 M1.4*0.3 1.1 1.142 1.075 M8.0*1.25 6.8 6.912 6.647 M1.6*0.35 1.25 1.321 1.221 M9.0*1.25 7.8 7.912 7.647 M1.7*0.35 1.35 1.421 1.321 M10*1.5 8.5 8.676 8.376 M1.8*0.35 1.45 1.521 1.421 M11*1.5 9.5 9.676 9.376 M2.0*0.4 1.6 1.679 1.567 M12*1.75 10.3 10.441 10.106 M2.2*0.45 1.75 1.838 1.713 M14*2.0 12 12.21 11.835 M2.3*0.4 1.9 1.979 1.867 M16*2.0 14 14.21 13.835 M2.5*0.45 2.1 2.138 2.013 M18*2.5 15.5 15.744 15.294 M2.6*0.45 2.2 2.238 2.113 M20*2.5 17.5 17.744 15.294 M3.0*0.5 2.5 2.599 2.459 M22*2.5 19.5 19.744 19.294 M3.5*0.6 2.9 3.01 2.85 M24*3.0 21 21.252 20.752 M4.0*0.7 3.3 3.422 3.242 M27*3.0 24 24.252 23.752 M4.5*0.75 3.8 3.878 3.688 M30*3.5 26.5 26.771 26.211 公制细螺纹规格标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小M1.0*0.2 0.8 0.821 0.783 M15*1.0 14 14.153 13.917 M1.1*0.2 0.9 0.921 0.883 M16*1.5 14.5 14.676 14.376 M1.2*0.2 1 1.021 0.983 M16*1.0 15 15.153 14.917 M1.4*0.2 1.2 1.221 1.183 M17*1.5 15.5 15.676 15.376 M1.6*0.2 1.4 1.421 1.383 M17*1.0 16 16.153 15.917 M1.7*0.2 1.45 1.5 1.46 M18*2.0 16 16.21 15.835 M1.8*0.2 1.6 1.621 1.583 M18*1.5 16.5 16.676 16.376 M2.0*0.25 1.75 1.785 1.729 M18*1.0 17 17.153 16.917 M2.2*0.25 1.95 1.985 1.929 M20*2.0 18 18.21 17.835 M2.3*0.25 2.05 2.061 2.001 M20*1.5 18.5 18.676 18.376 M2.5*0.35 2.2 2.221 2.121 M20*1.0 19 19.153 18.917 M2.6*0.35 2.2 2.246 2.186 M22*2.0 20 20.21 19.835 M3.0*0.35 2.7 2.721 2.621 M22*1.5 20.5 20.676 20.376 M3.5*0.35 3.2 3.221 3.121 M22*1.0 21 21.153 20.917 M4.0*0.5 3.5 3.599 3.459 M24*2.0 22 22.21 21.835 M4.5*0.5 4 4.099 3.959 M24*1.5 22.5 22.676 22.376 M5.0*0.5 4.5 4.599 4.459 M24*1.0 23 23.153 22.917 M5.5*0.5 5 5.099 4.959 M25*2.0 23 23.21 22.835 M6.0*0.75 5.3 5.378 5.188 M25*1.5 23.5 23.676 23.376 M6.0*0.5 5.5 5.55 5.4 M25*1.0 24 24.153 23.917 M7.0*0.75 6.3 6.378 6.188 M26*1.5 24.5 24.676 24.376 M7.0*0.5 6.5 6.55 6.4 M27*2.0 25 25.21 24.835 M8.0*1.0 7 7.153 6.917 M27*1.5 25.5 25.676 25.376 M8.0*0.75 7.3 7.378 7.188 M27*1.0 26 26.153 25.917 M8.0*0.5 7.5 7.52 7.4 M28*2.0 26 26.21 25.835 M9.0*1.0 8 8.153 7.917 M28*1.5 26.5 26.676 26.376 M9.0*0.75 8.3 8.378 8.188 M28*1.0 27 27.153 26.917 M10*1.25 8.8 8.912 8.647 M30*3.0 27 27.252 26.752 M10*1.0 9 9.153 8.917 M30*2.0 28 28.21 27.835 M10*0.75 9.3 9.378 9.188 M30*1.5 28.5 28.676 28.376 M10*0.5 9.5 9.52 9.4 M30*1.0 29 29.153 28.917 M11*1.0 10 10.153 9.917 M32*2.0 30 30.21 29.835 M11*0.75 10.3 10.378 10.188 M32*1.5 30.5 30.676 30.376 M12*1.5 10.5 10.676 10.376 M33*3.0 30 31.21 30.835 M12*1.25 10.8 10.912 10.647 M33*2.0 31 31.21 30.835 M12*1.0 11 11.153 10.917 M33*1.5 31.5 31.676 31.376 M12*0.5 11.5 11.52 11.4 M35*1.5 33.5 33.676 33.376 M14*1.5 12.5 12.676 12.376 M36*3.0 33 33.252 32.752 M14*1.0 13 13.153 12.917 M36*2.0 34 34.21 33.835 M15*1.5 13.5 13.676 13.376 M36*1.5 34.5 34.676 34.376 公制迫牙丝攻钻孔径规格精度等级规格精度等级G4-G6 G7-G8 G9 G4-G6 G7-G8 G9 M1.0*0.25 0.86 0.88 M3.0*0.5 2.73 2.75 M1.1*0.25 0.96 0.98 M3.5*0.6 3.17 3.2 M1.2*0.25 1.06 1.08 M4.0*0.7 3.62 3.65 3.69 M1.4*0.3 1.24 1.25 - M5.0*0.8 4.56 4.6 4.64 M1.6*0.35 1.41 1.43 - M6.0*1.0 5.45 5.5 5.55 M1.7*0.35 1.51 1.53 M7.0*1.0 6.45 6.5 6.55 M1.8*0.35 1.61 1.63 M8.0*1.25 7.31 7.38 7.44 M2.0*0.4 1.78 1.8 M10*1.5 9.18 9.25 9.32 M2.2*0.45 1.95 1.98 M10*1.25 9.31 9.38 9.44 M2.3*0.4 2.08 2.1 M12*1.75 11.04 11.12 11.21 M2.5*0.45 2.25 2.28 M12*1.25 11.31 11.38 11.44 M2.6*0.45 2.35 2.38 注：迫牙丝攻之钻孔径，在上表所列之数值，由於被加工材料之材质、硬度、形状、尺寸等之影响，多少会有所变动，因此於参考上表之同时，亦请增减若干公制螺纹规格滚造径M3.0*0.5 2.63 - 2.60 M3.0*0.6 2.56 - 2.53 M3.5*0.6 3.06 - 3.03 M4.0*0.7 3.49 - 3.45 M4.5*0.75 3.96 - 3.92 M5.0*0.8 4.43 - 4.38 M6.0*1.0 5.30 - 5.25 M7.0*1.0 6.30 - 6.25 M8.0*1.0 7.28 - 7.23 M8.0*1.25 7.12 - 7.07 美制粗螺纹规格（UNF）标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小（螺丝牙外径）No.1 -64(1.854) 1.55 1.582 1.425 2001/2/13 10.8 11.023 10.592 No.2 -56(2.184) 1.8 1.871 1.695 9/16 -12 12.2 12.446 11.989 No.3 -48(2.515) 2.1 2.146 1.941 2005/8/11 13.6 12.868 13.386 No.4 -40(2.845) 2.3 2.385 2.157 2003/4/10 16.5 18.84 16.307 No.5 -40(3.175) 2.6 2.697 2.487 2007/8/9 19.5 19.761 19.177 No.6 -32(3.505) 2.8 2.895 2.642 1月8日22.2 22.606 21.971 No.8 -32(4.166) 3.4 3.53 3.302 1-1/8-7 25 25.349 24.638 No.10-24(4.826) 3.9 3.962 3.683 1-1/4-7 28.2 28.524 27.813 No.12-24(5.486) 4.5 4.597 4.344 1-3/8-6 30.8 31.115 30.353 2001/4/20 5.1 5.257 4.979 1-1/2-6 34 34.29 33.528 5/16 -18 6.6 6.731 6.401 1-3/4-5 39.5 39.827 38.964 2003/8/16 8 8.153 7.798 2 -4-1/2 45.2 45.593 44.679 7/16 -14 9.4 9.55 9.144 美制细螺纹规格 (UNF) 标准径2级牙钻孔径规格标准径2级牙钻孔径最大最小最大最小（螺丝牙外径）No.0-80(1.524) 1.25 1.305 1.182 2003/8/24 8.5 8.636 8.382 No.1-72(1.854) 1.55 1.612 1.474 7/16 -20 9.9 10.033 9.729 No.2-64(2.184) 1.85 1.912 1.756 2001/2/20 11.5 11.607 11.329 No.3-56(2.515) 2.1 2.197 2.025 9/16 -18 12.9 13.081 12.751 No.4-48(2.845) 2.4 2.458 2.271 2005/8/18 14.5 14.681 14.351 No.5-44(3.175) 2.7 2.74 2.551 2003/4/16 17.5 17.678 17.323 No.6-40(3.505) 2.9 3.022 2.82 2007/8/14 20.5 20.675 20.27 No.8-36(4.16。