材质 
M5
0.8
5.7
11.8
5
4.82
8.71
5.8
0.2
8
7.78
3.5
2.5
M6
1
6.8
14.2
6
5.82
10.95
6.6
0.25
10
9.78
4
3
M8
1.25
9.2
18
8
7.78
14.26
8.1
0.4
13
12.73
5
4
M10
1.5
11.2
22.3
10
9.78
17.62
10.4
0.4
16
15.73
6
5
M12
1.75
13.7
26.6
12
11.73
19.86
11.8
0.6
18
17.73
7
6
M14
2
15.7
30.5
14
13.73
23.15
13.7
0.6
21
20.67
8
7
M16
2
17.7
35
16
15.73
26.51
15.4
0.6
24
23.67
9
8
M20
2.5
22.4
43
20
19.67
33.23
18.9
0.8
30
29.67
11
10