六角头螺栓和六角螺母用沉孔尺寸:摘自GB/T 152.4-1988
|
螺纹规格d
|
d2
|
d3
|
d1
|
|
1.6
|
5
|
-
|
1.8
|
|
2
|
6
|
-
|
2.4
|
|
2.5
|
8
|
-
|
2.9
|
|
3
|
9
|
-
|
3.4
|
|
4
|
10
|
-
|
4.5
|
|
5
|
11
|
-
|
5.5
|
|
6
|
13
|
-
|
6.6
|
|
8
|
18
|
-
|
9
|
|
10
|
22
|
-
|
11
|
|
12
|
26
|
16
|
13.5
|
|
14
|
30
|
18
|
15.5
|
|
16
|
33
|
20
|
17.5
|
|
18
|
36
|
22
|
20
|
|
20
|
40
|
24
|
22
|
|
22
|
43
|
26
|
24
|
|
24
|
48
|
28
|
26
|
|
27
|
53
|
33
|
30
|
|
30
|
61
|
36
|
33
|
|
33
|
66
|
39
|
36
|
|
36
|
71
|
42
|
39
|
|
39
|
76
|
45
|
42
|
|
42
|
82
|
48
|
45
|
|
45
|
89
|
51
|
48
|
|
48
|
98
|
56
|
52
|
|
52
|
107
|
60
|
56
|
|
55
|
112
|
68
|
62
|
|
60
|
118
|
72
|
66
|
|
64
|
125
|
76
|
70
|
