材质 
M2
0.4
1.2
0.8
1.6
3.2
3.08
3.5
3.5
3.425
2.5
3.5
3.2
5.2
5.08
0.3
M2.5
0.45
1.5
0.8
1.6
3.4
3.28
3.8
3.8
3.725
2.5
4
3.7
6
5.88
0.3
M3
0.5
1.6
1
1.8
3.8
3.68
4.2
4.2
4.125
2.8
4.5
4.2
7
6.85
0.3
M3.5
0.6
2
1
2
4.5
4.38
5
5
4.925
3.5
5.5
5.2
8
7.85
0.3
M4
0.7
2
1
2.8
5
4.88
5.5
5.5
5.425
4
6
5.7
9
8.85
0.4
M5
0.8
2.5
1
3.5
6.4
6.25
7
7
6.91
5
7.5
7.14
10.8
10.62
0.6
M6
1
3
1
4
7.4
7.25
8
8
7.91
6
9
8.64
12.8
12.62
0.6