材质 
M12
1.25|1.5|1.75
16
15.57
20.03
10
9.64
3.5
3.8
18
17.73
4.7
5
M14
1.5|2
18
17.57
23.35
11
10.57
3.5
3.8
21
20.67
5.7
6
M16
1.5|2
22
21.48
26.75
13
12.57
4.5
4.8
24
23.67
6.64
7
M18
1.5|2|2.5
25
24.3
29.56
15
14.3
4.5
4.8
27
26.16
8.64
9
M20
1.5|2|2.5
28
27.3
32.95
16
15.3
4.5
4.8
30
29.16
9.64
10
M22
1.5|2|2.5
30
29.3
35.03
18
17.3
5.5
5.8
32
31
9.64
10
M24
2|3
34
33
39.55
19
18.16
5.5
5.8
36
35
10.57
11
M27
2|3
38
37
45.2
22
21.16
5.5
5.8
41
40
13.57
14
M30
2|3.5
42
41
50.85
24
23.16
7
7.36
46
45
14.57
15
M33
2|3.5
46
45
55.37
26
25.16
7
7.36
50
49
16.57
17
M36
3|4
50
49
60.79
29
28.16
7
7.36
55
53.8
19.48
20
M39
3|4
55
53.8
66.44
31
30
7
7.36
60
58.8
21.48
22
M42
3|4.5
58
56.8
71.3
33
32
9
9.36
65
63.1
21.48
22
M45
3|4.5
62
60.8
76.95
34.5
33.5
9
9.36
70
68.1
22.02
22.5
M48
3|5
65
63.8
82.6
36
35
9
9.36
75
73.1
23.48
24
M52
3|5
70
68.8
88.25
38
37
9
9.36
80
78.1
25.48
26