材质 
M3
0.35|0.5
5.6
5.3
1.8
1.6
0.86
1
0.7
2
1.86
0.1
M4
0.5|0.7
8
7.64
2.4
2.2
1.26
1.51
1
2.8
2.66
0.2
M5
0.5|0.8
9.5
9.14
3
2.8
1.26
1.51
1.2
3.5
3.32
0.2
M6
0.75|1
12
11.57
3.6
3.3
1.66
1.91
1.4
4.5
4.32
0.25
M8
1|1.25
16
15.57
4.8
4.5
2.06
2.31
1.9
5.5
5.32
0.4
M10
1|1.25|1.5
20
19.48
6
5.7
2.56
2.81
2.4
7
6.78
0.4