材质 
M2
0.4
3.8
3.5
1.2
0.7
0.5
0.6
0.4
2
1.88
1.45
1.39
M2.5
0.45
4.7
4.4
1.5
0.8
0.6
0.7
0.5
2.5
2.37
1.88
1.82
M3
0.5
5.5
5.2
1.7
1
0.8
0.9
0.6
3
2.87
2.32
2.26
M3.5
0.6
7.3
6.9
2.3
1.2
1
1.2
0.9
3.5
3.35
2.68
2.6
M4
0.7
8.4
8
2.7
1.5
1.2
1.3
1
4
3.83
3.07
2.97
M5
0.8
9.3
8.9
2.7
1.5
1.2
1.4
1.1
5
4.82
3.94
3.84
M6
1
11.3
10.9
3.3
1.9
1.6
1.6
1.2
6
5.79
4.69
4.55
M8
1.25
15.8
15.4
4.6
2.3
2
2.3
1.8
8
7.76
6.4
6.24
M10
1.5
18.3
17.8
5
2.8
2.5
2.6
2
10
9.73
8.08
7.88