发布时间:2025-01-16 18:04:57
以下是常用的粗牙公制螺纹钻底孔尺寸对照表,通常底孔直径等于外径减去螺距。
1. M1 Φ0.75
2. M2 Φ1.6
3. M3 Φ2.5
4. M4 Φ3.3
5. M5 Φ4.2
6. M6 Φ5
7. M8 Φ6.75
8. M10 Φ8.5
9. M12 Φ10.25
10. M14 Φ12
11. M16 Φ14
12. M18 Φ15.5
13. M20 Φ17.5
14. M22 Φ19.5
15. M24 Φ21
16. M27 Φ24
17. M30 Φ26.5
螺纹钻孔底径的计算通常按照以下公式进行:
1. 攻公制直齿螺纹:螺距 t
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