材质 
M12
1.75
14.5
23.35
12
21
2
M16
2
18.5
29.56
16
27
2
M20
2.5
22.5
32.95
20
30
2
M24
3
26.5
39.55
24
36
3
M27
3
30.5
45.2
27
41
3
M30
3.5
33.5
50.85
30
46
3
M33
3.5
36.5
55.37
33
50
3
M36
4
39.5
60.79
36
55
3
M39
4
42.5
66.44
39
60
3
M42
4.5
45.5
72.09
42
65
3
M45
4.5
49.5
77.74
45
70
3
M48
5
53.5
83.39
48
75
4
M52
5
57.5
89.04
52
80
4
M56
5.5
63
94.47
56
85
4
M64
6
71
105.77
64
95
4
M72
6
79
117.07
72
105
4
M80
6
87
128.37
80
115
4
M90
6
97
145.09
90
130
4
M100
6
107
162.04
100
145
5
M110
6
119
173.34
110
155
5
M120
6
129
190.3
120
170
5
M125
6
134
202.27
125
180
5
M140
6
149
223.91
140
200
5
M150
6
159
235.21
150
210
5