内六角螺栓的沉孔及螺栓孔标准尺寸表(用于GB70,单位:毫米)
d | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M30 | M36 |
ds | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 |
d' | 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 |
dk | 3 | 3.8 | 4.5 | 5.5 | 7 | 8.5 | 10 | 13 | 16 | 18 | 21 | 24 | 30 | 36 | 45 | 54 |
D' | 3.3 | 4.3 | 5 | 6 | 8 | 10 | 11 | 15 | 18 | 20 | 24 | 26 | 33 | 40 | 48 | 57 |
k | 1.6 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 | 30 | 36 |
H'' | 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 |
d2 | 1.2 | 1.6 | 2.1 | 2.5 | 3.3 | 4.2 | 5.2 | 6.8 | 8.5 | 10.5 | 12.2 | 14.2 | 18.2 | 21.2 | 26.5 | 32.2 |