材质 
M3
0.5
5.6
5.3
2.4
2.2
2.86
1
1.83
7.35
6.85
0.45
0.3
M3.5
0.6
7
6.6
2.6
2.3
3.9
2
2.14
7.5
7
0.55
0.4
M4
0.7
8
7.6
3.1
2.8
4.36
2
2.54
8.75
8.25
0.6
0.45
M5
0.8
9.5
9.1
3.7
3.4
4.76
2
2.94
10.5
10
0.65
0.5
M6
1
12
11.5
4.6
4.3
6.8
3
3.84
12.15
11.65
0.75
0.6
M8
1.25
16
15.5
6
5.6
8.82
4
4.96
15.5
14.75
0.85
0.7
M10
1.5
20
19.4
7.5
7.1
10.04
4
6.16
17.7
16.95
1
0.8