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内六角沉头螺钉 GB/T
70.3-2000(ISO 10642-97) DIN 7991-86
机械性能：钢：8.8-10,9-12.9
不锈钢 A2-50
| d |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M14 |
M16 |
M20 |
| b |
参考 |
18 |
20 |
22 |
24 |
28 |
32 |
36 |
40 |
44 |
52 |
| dk |
理论值 |
max |
6.72 |
8.96 |
11.20 |
13.44 |
17.92 |
22.40 |
26.88 |
30.80 |
33.60 |
40.32 |
| 实际值 |
min |
5.54 |
7.53 |
9.43 |
11.34 |
15.24 |
19.22 |
23.12 |
25.52 |
29.01 |
36.05 |
| k |
max |
3.00 |
4.00 |
5.00 |
6.00 |
8.00 |
10.00 |
12.00 |
14.00 |
16.00 |
20.00 |
| min |
2.86 |
3.82 |
4.82 |
5.82 |
7.78 |
9.78 |
11.73 |
13.73 |
15.73 |
19.67 |
| s |
max |
2.060 |
2.58 |
3.080 |
4.095 |
5.140 |
6.140 |
8.175 |
10.175 |
10.175 |
12.212 |
| min |
2.020 |
2.52 |
3.020 |
4.020 |
5.020 |
6.020 |
8.025 |
10.025 |
10.025 |
12.032 |
| L |
8-30 |
8-40 |
8-50 |
8-60 |
10-80 |
12-100 |
16-100 |
20-100 |
25-100 |
30-100 |
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