材质 
M4
0.7
4
3.88
7.8
2.8
2.55
1.25
1
0.5
0.3
7
6.85
1
2.5
1.65
1.15
M5
0.8
5
4.88
8.8
3
2.75
1.45
1.2
0.7
0.3
8
7.85
1.6
3
1.45
0.95
M6
1
6
5.88
11
4
3.7
1.85
1.6
0.7
0.3
10
9.85
1.6
3
2.25
1.7
M8
1.25
8
7.85
15.5
5
4.7
1.85
1.6
1
0.6
14
13.82
2
4
2.75
2.2
M10
1.5
10
9.85
18.8
6
5.7
2.25
2
1
0.6
17
16.82
2.5
4
3.25
2.7
M12
1.75
12
11.82
21.1
7
6.64
2.75
2.5
1.2
0.8
19
18.79
2.5
4.5
4.25
3.64
M14
2
14
13.82
24.5
9
8.64
3.25
3
1.2
0.8
22
21.79
2.5
4.5
6.25
5.64