材质 
M4
0.7
7.66
5
4.7
1.2
1.8
7
6.78
3.2
2.9
M5
0.8
8.79
6.7
6.4
1.4
2
8
7.78
4.7
4.4
M6
1
11.05
7.7
7.34
2
2.6
10
9.78
5.2
4.9
M8
1.25
14.38
9.8
9.44
2.5
3.1
13
12.73
6.8
6.44
M10
1.5
17.77
12.4
11.97
2.8
3.4
16
15.73
8.4
8.04
M12
1.75
20.03
15.8
15.37
3.5
4.25
18
17.73
10.8
10.37
M14
2
23.36
17.8
17.37
3.5
4.25
21
20.67
12.8
12.37
M16
2
26.75
20.8
20.28
4.5
5.7
24
23.67
14.8
14.37
M20
1.5|2|2.5
32.95
24
23.16
4.5
5.7
30
29.16
18
17.37
M24
1.5|2|3
39.55
29.5
28.66
5.5
6.7
36
35
21.5
20.88
M30
1.5|2|3.5
50.85
34.6
33.6
7
8.5
46
45
25.6
24.98
M36
1.5|2|3|4
60.79
40
39
7
8.5
55
53.8
31
30.38