材质 
M8
1
14.38
7.5
7.14
13
12.73
M10
1|1.25
17.77
9.3
8.94
16
15.73
M12
1|1.25|1.5
20.03
12
11.57
18
17.73
M14
1|1.5
23.36
14.1
13.4
21
20.67
M16
1|1.5
26.75
16.4
15.7
24
23.67
M18
1.5|2
29.56
17.8
16.9
27
26.16
M20
1.5|2
32.95
20.3
19
30
29.16
M22
1.5|2
37.29
21.8
20.5
34
33
M24
1.5|2
39.55
23.9
22.6
36
35
M27
2
45.2
26.7
25.4
41
40
M30
2
50.85
28.6
27.3
46
45
M33
2
55.37
32.5
30.9
50
49
M36
3
60.79
34.7
33.1
55
53.8
M39
3
66.44
37.5
35.9
60
58.8