材质 
M4
0.7
4
3.82
1
2.7
2.3
0.3
9.29
8.71
M5
0.8
5
4.82
1.6
4.24
3.76
0.3
10.29
9.71
M6
1
6
5.82
1.6
6.29
5.71
0.5
13.35
12.65
M8
1.25
8
7.78
1.6
6.29
5.71
0.5
15.35
14.65
M10
1.5
10
9.78
2.5
7.29
6.71
0.8
18.35
17.65
M12
1.75
12
11.73
2.5
8.29
7.71
0.8
22.42
21.58
M14
2
14
13.73
2.5
9.29
8.71
0.8
25.42
24.58
M16
2
16
15.73
2.5
10.29
9.71
1.2
28.42
27.58
M18
2.5
18
17.73
2.5
12.35
11.65
1.2
32.5
31.5
M20
2.5
20
19.67
2.5
14.35
13.65
1.2
34.5
33.5
M22
2.5
22
21.67
4
16.35
15.65
1.2
40.5
39.5
M24
3
24
23.67
4
18.35
17.65
1.6
43.5
42.5
M27
3
27
26.67
4
20.42
19.58
1.6
50.5
49.5
M30
3.5
30
29.67
6
23.42
22.58
1.6
53.6
52.4
M36
4
36
35.61
6
28.42
27.58
2
64.6
63.4
M42
4.5
42
41.61
6
32.5
31.5
2
75.6
74.4
M48
5
48
47.61
6
36.5
35.5
2
85.7
84.4