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 |
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