材质 
M8
1.25
19.5
20.9
35.5
37.1
19.1
20.5
8
9.4
35.5
37.1
9.5
10.9
M10
1.5
24.5
26.1
44.4
46.2
23.9
25.5
9.5
11.1
44.4
46.2
11.5
13.1
M12
1.75
29.5
30.9
53.5
55.1
29.1
30.5
10.5
11.9
52.5
54.1
13.5
14.9
M16
2
34.4
36.2
62.4
64.2
33.8
35.6
12.5
14.1
61.4
63.2
15.5
17.1
M20
2.5
39.4
41.2
71.4
73.2
38.8
40.6
15.5
17.1
70.4
72.2
18.5
20.1
M24
3
49.3
51.3
89.3
91.3
48.7
50.7
19.4
21.2
89.3
91.3
23.4
25.2
M30
3.5
64.3
66.3
107.3
109.5
58.7
60.7
24.4
26.2
108.3
110.5
27.4
29.2
M36
4
74.3
76.5
125.2
127.7
68.5
70.7
29.3
31.3
127.2
129.7
31.3
33.3
M42
4.5
84.3
86.5
143.2
145.7
78.5
80.7
34.3
36.5
146.2
148.7
37.3
39.5
M48
5
99.2
101.7
164.9
168.1
88.3
90.8
39.2
41.7
166.9
170.1
45.2
47.7
M56
5.5
108.9
112.1
182.8
186.4
98.1
100.9
44.1
46.9
185.8
189.4
49.1
51.9
M64
6
118.9
122.1
204.8
208.4
107.9
111.1
49.1
51.9
206.8
210.4
57.1
59.9
M72
6
148.8
152.4
258.5
263
137.6
141.2
58.9
62.1
258.5
263
70.9
74.1
M80
6
168.5
173
294.3
299.3
157.3
161.3
68.8
72.4
296.3
301.3
78.8
82.4
M100
6
188.5
193
328.3
333.3
177
181.5
78.8
82.4
328.3
333.3
86.8
90.4