材质 
M8
1
15
3.5
13
12.73
0.4
M10
1.25
19.6
4
17
16.73
0.5
M12
1.5
21.9
4.5
19
18.67
0.6
M14
1.5
25.4
5
22
21.67
0.6
M16
1.5
27.7
5
24
23.67
0.7
M18
2
31.2
5.5
27
26.67
0.7
M20
2
34.6
6
30
29.67
0.8
M22
2
36.9
6
32
31.61
0.8
M24
2
41.6
7
36
35.61
0.9
M27
2
47.3
7
41
40.61
1
M30
2
53.1
8
46
45.61
1
M33
2
57.7
8
50
49.61
1
M36
3
63.5
9
55
54.54
1.3
M39
3
69.3
9
60
59.54
1.3
M42
3
75
11
65
64.54
1.4
M45
3
80.8
12
70
69.54
1.5
M48
3
86.5
14
75
74.54
1.5
M52
3
92.4
16
80
79.54
1.5