材质 
M2.5
0.45
10.9
10
3.1
0.1
1.9
1.7
11.35
10.65
6.79
6.21
2.5
2.25
5
4.7
0.5
M3
0.5
13
12
3.6
0.1
2.3
2.1
12.35
11.65
7.79
7.21
2.5
2.25
6
5.7
0.5
M4
0.7
15.4
14
4.7
0.2
3
2.8
16.35
15.65
9.79
9.21
3.5
3.2
8
7.64
0.5
M5
0.8
17.6
16
5.7
0.2
3.9
3.7
20.42
19.58
11.85
11.15
4
3.7
10
9.64
1
M6
1
20
18
6.8
0.25
4.6
4.4
24.42
23.58
15.35
14.65
5
4.7
12
11.57
1
M8
1.25
24.5
22
9.2
0.4
6.2
6
30.42
29.58
18.35
17.65
6
5.7
16
15.57
2
M10
1.5
29
26
11.2
0.4
7.7
7.5
36.5
35.5
23.42
22.58
8
7.64
20
19.48
2