材质 
M6
1
11.05
10
9.78
4
3.7
M7
1
12.12
11
10.73
4
3.7
M8
1.25
14.39
13
12.73
5
4.7
M10
1.5
18.9
17
16.73
6
5.7
M12
1.75
21.1
19
18.67
7
6.64
M14
2
24.49
22
21.67
8
7.64
M16
2
26.75
24
23.67
8
7.64
M18
2.5
30.14
27
26.67
9
8.64
M20
2.5
33.53
30
29.67
9
8.42
M22
2.5
35.72
32
31.61
10
9.42
M24
3
39.98
36
35.61
10
9.42
M27
3
45.63
41
40.61
12
10.9
M30
3.5
51.28
46
45.61
12
10.9
M33
3.5
55.8
50
49.61
14
12.9
M36
4
61.31
55
54.54
14
12.9
M39
4
66.96
60
59.54
16
14.9
M42
4.5
72.61
65
64.54
16
14.9
M45
4.5
78.26
70
69.54
18
16.9
M48
5
83.91
75
74.54
18
16.9
M52
5
89.56
80
79.54
20
18.7
M56
5.5
95.07
85
84.46
22
20.7
M60
5.5
100.72
90
89.46
24
22.7