| 螺纹下孔径技术参数 | ||||
| 规格 | 外径 | 牙距 | 底孔径 | |
| 挤压 | 切削 | |||
| M1*0.25 | 0.89 | 0.75 | ||
| M1.2*0.25 | 1.09 | 0.95 | ||
| M1.4*0.3 | 1.27 | 1.1 | ||
| M1.6*0.35 | 1.44 | 1.25 | ||
| M1.7*0.35 | 1.54 | 1.35 | ||
| M2*0.4 | 1.82 | 1.6 | ||
| M2.5*0.45 | 2.3 | 2.05 | ||
| M3*0.5 | 2.78 | 2.5 | ||
| M3.5*0.6 | 3.23 | 2.9 | ||
| M4*0.7 | 3.69 | 3.3 | ||
| M5*0.8 | 4.64 | 4.2 | ||
| M6*1.0 | 5.55 | 5 | ||
| M8*1.25 | 7.38 | 6.75 | ||
| M10*1.5 | 9.25 | 8.5 | ||
| M12*1.75 | 11.1 | 10.25 | ||
| 0-80 | 1.52 | 0.32 | 1.38 | 1.21 |
| 1-64 | 1.85 | 0.4 | 1.68 | 1.46 |
| 1-72 | 1.85 | 0.35 | 1.7 | 1.5 |
| 3-48 | 2.51 | 0.53 | 2.28 | 1.99 |
| 2-56 | 2.18 | 0.45 | 1.98 | 1.73 |
| 4-40 | 2.84 | 0.64 | 2.56 | 2.21 |
| 6-32 | 3.51 | 0.79 | 3.15 | 2.71 |
| 8-32 | 4.17 | 0.79 | 3.81 | 3.37 |
| 10-24 | 4.83 | 1.06 | 4.35 | 3.77 |
| 12-24 | 5.49 | 1.06 | 5.01 | 4.43 |
| U1/4-20 | 6.35 | 1.27 | 5.75 | 5.08 |
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