材质 
M6
1
11.3
10.9
3.3
T30
1.8
1.4
4.15
M8
1.25
15.8
15.4
4.65
T40
2.5
2.1
5
M10
1.5
18.3
17.8
5
T50
2.7
2.3
6.62
M12
1.75
22
21.5
6
T55
3.5
3.02
8.2
M14
2
25.5
25
7
T55
3.7
3.22
8.2
M16
2
29
28.5
8
T60
4.1
3.62
9.8
M20
2.5
36
35.4
10
T80
6
5.42
13