材质 
M5
0.8
5.4
6.6
4.48
M6
1
7.25
8.75
5.35
M8
1.25
9.25
10.75
7.19
M10
1.5
11.1
12.9
9.03
M12
1.75
14.1
15.9
10.86
M14
2
17.1
18.9
12.70
M16
2
18.95
21.05
14.70
M18
2.5
20.95
23.05
16.38
M20
2.5
23.95
26.05
18.38
M22
2.5
26.95
29.05
20.38
M24
3
28.95
31.05
22.05
M27
3
33.75
36.25
25.05
M30
3.5
36.75
39.25
27.73
M33
3.5
39.75
42.25
30.73
M36
4
43.75
46.25
33.40
M39
4
47.75
50.25
36.40
M42
4.5
50.5
53.5
39.08
M48
5
58.5
61.5
44.75