材质 
M3
0.5
0.7
0.55
3.6
6.9
6.32
5.2
4.9
2.303
1.65
1.4
0.1
2.08
2.02
1.04
M4
0.7
0.8
0.65
4.7
9.4
8.82
7.2
6.8
2.873
2.2
1.95
0.2
2.58
2.52
1.3
M5
0.8
1
0.8
5.7
11.8
11.1
8.8
8.4
3.443
2.75
2.5
0.2
3.08
3.02
1.56
M6
1
1.2
1
6.8
13.6
12.9
10
9.6
4.583
3.3
3
0.25
4.095
4.02
2.08
M8
1.25
1.5
1.25
9.2
17.8
17.1
13.2
12.8
5.723
4.4
4.1
0.4
5.14
5.02
2.6
M10
1.5
2
1.7
11.2
21.9
21.06
16.5
16.1
6.863
5.5
5.2
0.4
6.14
6.02
3.12
M12
1.75
2.4
2.1
13.7
26
25.16
19.4
18.9
9.149
6.6
6.24
0.6
8.175
8.025
4.16
M16
2
2.8
2.5
17.7
34
33
26
25.5
11.429
8.8
8.44
0.6
10.175
10.025
5.2