四
11
6月
2009
GB30螺栓,30螺栓,GB30国标螺栓
GB30螺栓,跟高强度GB5783六角头部大小其实一样,不一样的地方就是GB30螺栓用到的材料是Q235制作,而GB5783用到的材料是45号钢制作。
一下是GB30螺栓的螺纹和参数
|
螺纹规格d
|
M3
|
M4
|
M5
|
M6
|
M8
|
M10
|
M12
|
M(14)
|
M16
|
M20
|
|
|
b
参
考
|
l≤125
|
12
|
14
|
16
|
18
|
22
|
16
|
30
|
34
|
38
|
46
|
|
125<l≤200
|
—
|
—
|
—
|
—
|
28
|
32
|
36
|
40
|
44
|
52
|
|
|
da max
|
3.6
|
4.7
|
5.7
|
6.8
|
9.2
|
11.2
|
13.7
|
15.7
|
17.7
|
22.4
|
|
|
dw min
|
4.4
|
5.7
|
6.7
|
8.7
|
11.4
|
14.4
|
16.4
|
19.2
|
22
|
27.7
|
|
|
e min
|
5.98
|
7.5
|
8.63
|
10.89
|
14.2
|
17.59
|
19.85
|
22.78
|
26.17
|
32.95
|
|
|
k
|
公称
|
2
|
2.8
|
3.5
|
4
|
5.3
|
6.4
|
7.5
|
8.8
|
10
|
12.5
|
|
min
|
1.8
|
2.6
|
3.26
|
3.76
|
5.06
|
6.11
|
7.21
|
8.51
|
9.71
|
12.15
|
|
|
max
|
2.2
|
3
|
3.74
|
4.24
|
5.54
|
6.69
|
7.79
|
9.09
|
10.29
|
12.85
|
|
|
k` min
|
1.3
|
1.8
|
2.3
|
2.6
|
3.5
|
4.3
|
5
|
6
|
6.8
|
8.5
|
|
|
r min
|
0.1
|
0.2
|
0.2
|
0.25
|
0.4
|
0.4
|
0.6
|
0.6
|
0.6
|
0.8
|
|
|
s
|
max
|
5.5
|
7
|
8
|
10
|
13
|
16
|
18
|
21
|
24
|
30
|
|
min
|
5.2
|
6.64
|
7.64
|
9.64
|
12.57
|
15.57
|
17.57
|
20.16
|
23.16
|
29.16
|
|
|
x max
|
1.25
|
1.75
|
2
|
2.5
|
3.2
|
3.8
|
4.3
|
5
|
5
|
6.3
|
|
|
l
|
20~30
|
20~40
|
25~50
|
25~60
|
30~80
|
40~100
|
45~120
|
50~140
|
55~150
|
65~150
|
|
