材质 
M2
0.4
3.2
3.02
3.38
1.6
1.3
2.6
0.1
2
1.88
1.46
1.39
1.8
1.4
M2.5
0.45
4
3.82
4.28
2.1
1.8
3.1
0.1
2.5
2.37
1.88
1.82
2
1.6
M3
0.5
5
4.82
5.4
2.3
2
3.6
0.1
3
2.87
2.32
2.26
2.3
1.8
M3.5
0.6
5.5
5.32
5.96
2.6
2.3
4.1
0.1
3.5
3.35
2.68
2.6
2.7
2.1
M4
0.7
7
6.78
7.59
3
2.6
4.7
0.2
4
3.83
3.07
2.97
3.2
2.5
M5
0.8
8
7.78
8.71
3.8
3.3
5.7
0.2
5
4.82
3.94
3.84
3.6
2.8
M6
1
10
9.78
10.95
4.7
4.1
6.8
0.3
6
5.79
4.69
4.55
4.5
3.5
M8
1.25
13
12.73
14.26
6
5.2
9.2
0.4
8
7.76
6.4
6.24
5.6
4.4
M10
1.5
16
15.73
17.62
7.5
6.5
11.2
0.4
10
9.73
8.08
7.88
6.8
5.3