材质 
M12
1.25|1.5
13.7
19.85
7.79
7.21
0.6
18
17.57
M14
1.5
15.7
22.78
9.09
8.51
0.6
21
20.16
M16
1.5
17.7
26.17
10.29
9.71
0.6
24
23.16
M18
1.5
20.2
29.56
11.85
11.15
0.6
27
26.16
M20
1.5|2
22.4
32.95
12.85
12.15
0.8
30
29.16
M22
1.5|2
24.4
37.29
14.35
13.65
0.8
34
33
M24
2
26.4
39.55
15.35
14.65
0.8
36
35
M27
2
30.4
45.2
17.35
16.65
1
41
40
M30
2
33.4
50.85
19.12
18.28
1
46
45
M33
2
36.4
55.37
21.42
20.58
1
50
49
M36
3
39.4
60.79
22.92
22.08
1.2
55
53.8
M39
3
42.4
66.44
25.42
24.58
1.2
60
58.8
M42
3
45.6
72.02
26.42
25.58
1.2
65
63.8