材质 
M6
1
6.8
12
11.57
4.6
4.3
0.25
T30
2
1.6
4.15
M8
1.25
9.2
16
15.57
6
5.7
0.4
T45
2.6
2.2
5
M10
1.5
11.2
20
19.48
7.5
7.14
0.4
T50
3
2.6
6.62
M12
1.75
14.2
24
23.48
9
8.64
0.6
T55
3.8
3.32
8.2