材质 
M6
1
10
9.78
6.8
3.9
3.6
T30
2
1.6
4.15
M8
1.25
13
12.73
9.2
5
4.7
T40
2.6
2.2
5
M10
1.5
16
15.73
11.2
6
5.7
T50
3
2.6
6.62
M12
1.75
18
17.73
14.2
7
6.64
T55
3.8
3.32
8.2