材质 
M3
0.5
3
2.9
2.1
1.9
0.1
5.5
5.3
3.6
M4
0.7
4
3.9
2.9
2.7
0.2
7
6.8
4.7
M5
0.8
5
4.9
3.65
3.35
0.2
8
7.8
5.7
M6
1
6
5.9
4.15
3.85
0.25
10
9.8
6.8
M8
1.25
8
7.85
5.65
5.35
0.4
13
12.75
9.2
M10
1.5
10
9.85
7.2
6.8
0.4
17
16.75
11.2
M12
1.75
12
11.8
8.2
7.8
0.6
19
18.65
14.2
M14
2
14
12.8
9.2
8.8
0.6
22
21.65
16.2
M16
2
16
15.8
10.2
9.8
0.6
24
23.65
18.2
M18
2.5
18
17.8
12.2
11.8
0.6
27
26.65
20.2
M20
2.5
20
19.8
13.2
12.8
0.8
30
29.65
22.4
M22
2.5
22
21.8
14.2
13.8
0.8
32
31.6
24.4
M24
3
24
23.8
15.2
14.8
0.8
36
35.6
26.4