材质 
M2.5
0.45
2.5
3.5
3.25
3.3
3.5
M3
0.5
3
3.9
3.65
3.8
4
M3.5
0.6
3.5
3.7
3.45
4.55
4.75
M4
0.7
4
3.7
3.45
5.15
5.35
M5
0.8
5
4.3
4.05
6.35
6.6
M6
1
6
4.2
3.95
7.6
7.85
M7
1
7
5.3
5.05
8.65
8.9
M8
1.25
8
4.7
4.45
9.85
10.1
M10
1.5
10
5
4.75
12.1
12.5
M12
1.75
12
5.2
4.95
14.4
14.8
M14
2
14
5.6
5.35
16.8
17.2
M16
2
16
6.5
6.25
19
19.4
M18
2.5
18
5.6
5.35
21.5
22
M20
2.5
20
6.2
5.95
23.7
24.2
M22
2.5
22
6.9
6.65
26.3
26.8
M24
3
24
6.2
5.95
28.6
29.1