材质 
M3.5
0.6
7.3
6.9
2.3
1.2
1
1.2
0.9
0.45
0.3
M4
0.7
8.4
8
2.7
1.5
1.2
1.3
1
0.55
0.4
M5
0.8
9.3
8.9
2.7
1.5
1.2
1.4
1.1
0.65
0.5
M6
1
11.3
10.9
3.3
1.9
1.6
1.6
1.2
0.65
0.5
M8
1.25
15.8
15.4
4.6
2.3
2
2.3
1.8
0.7
0.55
M10
1.5
18.3
17.8
5
2.8
2.5
2.6
2
0.85
0.7