材质 
M3
0.5
10
5
17
15
7
6
2
4
4
3
1
M4
0.7
12
6
20
18
9
8
2.5
5
4.5
3.5
1
M5
0.8
13
7
23
21
9.5
8.5
3
5.5
5
4
1
M6
1
15
9
26
24
10.3
8.7
3.5
6
5.8
4.2
1
M8
1.25
17
10
29
27
11.8
10.2
5
7
6.8
5.2
1.2
M10
1.5
20
12
36.5
33.5
13
11
6
8
7.8
6.2
1.2