材质 
M5
0.8
11.8
5.48
4.52
5.5
3.1
2.5
9
0.8
M6
1
14.2
6.48
5.52
6.7
3.6
3
10
0.8
M8
1.25
18
8.58
7.42
8.7
4.8
4
12
0.8
M10
1.5
22.3
10.58
9.42
10.8
5.8
5
12
0.8
M12
1.75
26.6
12.7
11.3
12.8
6.8
6
14
0.8
M14
2
30.5
14.7
13.3
14.9
7.9
7
16
0.8