滚花高头螺钉 (摘自GB 834-88)
螺纹规格为M1.6～M10的滚花高头螺钉。
标记示例：
螺纹规格d=M5、公称长度l=20mm、性能等级为4.8级、不经表面处理的滚花高头螺钉的标记：
螺钉 GB 834 M5×20
螺纹规格为M1.6～M10的滚花高头螺钉：
螺纹规格
d
|
dk
（滚花前）
|
K
|
K1
|
K2
|
R ≥
|
r
min
|
re≈
|
C
|
d1
|
d2
|
l
|
max
|
min
|
max
|
min
|
M1.6
|
7
|
6.78
|
4.7
|
4.52
|
2
|
0.8
|
1.25
|
0.1
|
2.24
|
0.2
|
4
|
3.6
|
2～8
|
M2
|
8
|
7.78
|
5
|
4.82
|
2
|
1
|
1.25
|
0.1
|
2.8
|
0.2
|
4.5
|
3.8
|
2.5～10
|
M2.5
|
9
|
8.78
|
5.5
|
5.32
|
2.2
|
1
|
1.5
|
0.1
|
3.5
|
0.2
|
5
|
4.4
|
3～12
|
M3
|
11
|
10.37
|
7
|
6.78
|
2.8
|
1.2
|
2
|
0.1
|
4.2
|
0.3
|
6
|
5.2
|
4～16
|
M4
|
12
|
11.73
|
8
|
7.78
|
3
|
1.5
|
2
|
0.2
|
5.6
|
0.3
|
8
|
6.4
|
5～16
|
M5
|
16
|
15.73
|
10
|
9.78
|
4
|
2
|
2.5
|
0.2
|
7
|
0.5
|
10
|
9
|
6～20
|
M6
|
20
|
19.67
|
12
|
11.57
|
5
|
2.5
|
3
|
0.25
|
8.4
|
0.5
|
12
|
11
|
8～25
|
M8
|
24
|
23.67
|
16
|
15.57
|
6
|
3
|
4
|
0.4
|
11.2
|
0.8
|
16
|
13
|
10～30
|
M10
|
30
|
29.67
|
20
|
19.48
|
8
|
3.8
|
5
|
0.4
|
14
|
0.8
|
20
|
17.5
|
12～35
|
l的范围：
公称
|
2
|
2.5
|
3
|
4
|
5
|
6
|
8
|
10
|
12
|
(14)
|
16
|
20
|
25
|
30
|
35
|
min
|
1.80
|
2.30
|
2.80
|
3.76
|
4.76
|
5.76
|
7.71
|
9.71
|
11.65
|
13.65
|
15.65
|
19.58
|
24.58
|
29.58
|
34.50
|
max
|
2.20
|
2.70
|
3.20
|
4.24
|
5.24
|
6.24
|
8.29
|
10.29
|
12.35
|
14.35
|
16.35
|
20.42
|
25.42
|
30.42
|
35.50
|
