材质 
M10
1
11.8
12.65
5.5
7.8
M12
1.25
14.27
15
6.7
9.3
M14
1.25
16.45
17.7
7.7
10.8
M18
1.5
20.54
22
9.8
13.9
M20
1.5
22.77
24.2
10.8
15.4
M22
1.5
24.92
26.8
11.8
16.9
M24
1.5
27.92
29.1
12.8
18.4
M27
1.5
29.92
32.4
14.3
20.7
M30
1.5
32.92
35.81
15.8
22.9
M33
1.5
35.92
39.01
17.3
25.2
M36
2
39.57
42.67
19.1
27.5
M39
2
42.57
45.75
20.6
29.8