材质 
M3
0.5
3.6
5.5
5.32
2.3
2
1.86
0.3
1.62
1.38
0.1
2.10
2.02
M4
0.7
4.7
7
6.78
2.87
2.8
2.66
0.35
2.42
2.18
0.2
2.60
2.52
M5
0.8
5.7
8.5
8.28
3.44
3.5
3.32
0.35
2.82
2.58
0.2
3.10
3.02
M6
1
6.8
10
9.78
4.58
4
3.82
0.4
3.12
2.88
0.25
4.12
4.02
M8
1.25
9.2
13
12.73
5.72
5
4.82
0.6
3.95
3.65
0.4
5.14
5.02
M10
1.5
11.2
16
15.73
8.01
6
5.82
0.6
4.65
4.35
0.4
7.175
7.025
M12
1.75
13.7
18
17.73
9.15
7
6.78
0.85
5.15
4.85
0.6
8.175
8.025
M14
2
15.7
21
20.67
11.43
8
7.78
0.85
5.45
5.15
0.6
10.175
10.025
M16
2
17.7
24
23.67
13.72
9
8.78
0.85
5.65
5.35
0.6
12.212
12.032
M18
2.5
20.2
27
26.67
13.72
10
9.78
1.1
6.68
6.32
0.6
12.212
12.032
M20
2.5
22.4
30
29.67
16
11
10.73
1.2
7.68
7.32
0.8
14.212
14.032
M22
2.5
24.4
33
32.61
16
12
11.73
1.2
8.18
7.82
0.8
14.212
14.032
M24
3
26.4
36
35.61
19.44
13
12.73
1.2
8.18
7.82
0.8
17.23
17.05