螺丝粗螺纹攻牙钻孔径和滚造径一览表
来源：网络 作者：网络转载 2019-10-09 阅读：374
| 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 | 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) | 1.8 | 1.871 | 1.695 |
| M1.2×0.25 | 0.95 | 0.985 | 0.985 | NO.3-48(2.515) | 2.1 | 2.146 | 1.941 |
| M1.4×0.3 | 1.1 | 1.142 | 1.075 | NO.4-40(2.845) | 2.3 | 2.385 | 2.157 |
| M1.6×0.35 | 1.25 | 1.321 | 1.221 | NO.5-40(3.175) | 2.6 | 2.697 | 2.487 |
| M1.7×0.35 | 1.35 | 1.421 | 1.321 | NO.6-32(3.505) | 2.8 | 2.895 | 2.642 |
| M1.8×0.35 | 1.45 | 1.521 | 1.421 | NO8-32(4.166) | 3.4 | 3.53 | 3.302 |
| M2.0×0.4 | 1.6 | 1.679 | 1.567 | NO.10-24(4.826) | 3.9 | 3.962 | 3.683 |
| M2.2×0.45 | 1.75 | 1.838 | 1.713 | NO.12-24(5.486) | 4.5 | 4.597 | 4.344 |
| M2.3×0.4 | 1.9 | 1.979 | 1.867 | 2001-4-20 | 5.1 | 5.257 | 4.979 |
| M2.5×0.45 | 2.1 | 2.138 | 2.013 | 5/16-18 | 6.6 | 6.731 | 6.401 |
| M2.6×0.45 | 2.2 | 2.238 | 2.113 | 2003-8-16 | 8 | 8.153 | 7.798 |
| M3.0×0.5 | 2.5 | 2.599 | 2.459 | 7/16-14 | 9.4 | 9.55 | 9.144 |
| M3.0×0.6 | 2.4 | 2.44 | 2.28 | 2001-2-13 | 10.8 | 11.023 | 10.592 |
| M3.5×0.6 | 2.9 | 3.01 | 2.85 | 9/16-12 | 12.2 | 12.446 | 11.989 |
| M4.0×0.7 | 3.3 | 3.422 | 3.242 | 2005-8-11 | 13.6 | 12.868 | 13.386 |
| M4.0×0.75 | 3.25 | 3.326 | 3.106 | 2003-4-10 | 16.5 | 18.84 | 16.307 |
| M4.5×0.75 | 3.8 | 3.878 | 3.688 | 2007-8-9 | 19.5 | 19.761 | 19.177 |
| M5.0×0.8 | 4.2 | 4.334 | 4.134 | 1 | 22.2 | 22.606 | 21.971 |
| M5.0×0.9 | 4.1 | 4.17 | 3.93 | 1-1/8-7 | 25 | 25.349 | 24.638 |
| M6.0×1.0 | 5 | 5.153 | 4.917 | 1-1/4-7 | 28.2 | 28.524 | 27.813 |
| M7.0×1.0 | 6 | 6.153 | 5.917 | 1-3/8-6 | 30.8 | 31.115 | 30.353 |
| M8.0×1.25 | 6.8 | 6.912 | 6.647 | 1-1/2-6 | 34 | 34.29 | 33.528 |
| M9.0×1.25 | 7.8 | 7.912 | 7.647 | 1-3/4-5 | 39.5 | 39.827 | 38.964 |
| M10×1.5 | 8.5 | 8.676 | 8.376 | 2-4-1/2 | 45.2 | 45.593 | 44.679 |
| M11×1.5 | 9.5 | 9.676 | 9.376 | | | | |
| M12×1.75 | 10.3 | 10.441 | 10.106 | | | | |
| M14×2.0 | 12 | 12.21 | 11.835 | | | | |
| M16×2.0 | 14 | 14.21 | 13.835 | | | | |
| M18×2.5 | 15.5 | 15.744 | 15.294 | | | | |
| M20×2.5 | 17.5 | 17.744 | 17.294 | | | | |
| M22×2.5 | 19.5 | 19.744 | 19.294 | | | | |
| M24×3.0 | 21 | 21.252 | 20.752 | | | | |
| M27×3.0 | 24 | 24.252 | 23.752 | | | | |
| M30×3.5 | 26.5 | 26.771 | 26.211 | | | | |
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