3 尺寸
3.1 表1适用于GB 70用的圆柱头沉孔尺寸。
表1
螺纹规格 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M30 | M36 |
d2 | 3.3 | 4.3 | 5 | 6 | 8 | 10 | 11 | 15 | 18 | 20 | 24 | 26 | 33 | 40 | 48 | 57 |
t | 1.8 | 2.3 | 2.9 | 3.4 | 4.6 | 5.7 | 6.8 | 9 | 11 | 13 | 15 | 17.5 | 21.5 | 25.5 | 32 | 38 |
d3 | / | / | / | / | / | / | / | / | / | 16 | 18 | 20 | 24 | 28 | 36 | 42 |
d1 | 1.8 | 2.4 | 2.9 | 3.4 | 4.5 | 5.5 | 6.6 | 9 | 11 | 13.5 | 15.5 | 17.5 | 22 | 26 | 33 | 39 |
注:尺寸d1、d2和t的公差带均为H13。 |
表2
螺纹规格 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
d2 | 8 | 10 | 11 | 15 | 18 | 20 | 24 | 26 | 33 |
t | 3.2 | 4 | 4.7 | 6 | 7 | 8 | 9 | 10.5 | 12.5 |
d3 | / | / | / | / | / | 16 | 18 | 20 | 24 |
d1 | 4.5 | 5.5 | 6.6 | 9 | 11 | 13.5 | 15.5 | 17.5 | 22 |
注:尺寸d1、d2和t的公差带均为H13。 |
3.2 表2适用于GB 6190、GB 6191及GB 65 用的圆柱头沉孔尺寸。
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