焊接六角螺母 (摘自GB/T 13681-92)
螺纹规格M4~M16的焊接六角螺母的型式、尺寸和技术条件。
标记示例:
螺纹规格D=M10、材料为含碳量不大于0.25%的钢、不经表面处理的焊接六角螺母的标记:
螺母 GB/T 13681 M10
螺纹规格M4~M16的焊接六角螺母:
螺纹规格
(D或D×P)
|
da
|
dw
min
|
e
min
|
dy
|
d3
|
h1
|
h2
|
b
|
m
|
s
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
M4
|
—
|
—
|
4.6
|
4
|
7.88
|
9.83
|
5.97
|
5.885
|
6.18
|
6
|
0.65
|
0.55
|
0.35
|
0.25
|
1
|
0.6
|
3.5
|
3.2
|
9
|
8.78
|
M5
|
—
|
—
|
5.75
|
5
|
8.88
|
10.95
|
6.96
|
6.87
|
7.22
|
7
|
0.70
|
0.60
|
0.40
|
0.30
|
1
|
0.6
|
4
|
3.7
|
10
|
9.78
|
M6
|
—
|
—
|
6.75
|
6
|
9.63
|
12.02
|
7.96
|
7.87
|
8.22
|
8
|
0.75
|
0.60
|
0.40
|
0.30
|
1.12
|
0.68
|
5
|
4.7
|
11
|
10.73
|
M8
|
M8×1
|
—
|
8.75
|
8
|
12.63
|
15.38
|
10.45
|
10.34
|
10.77
|
10.5
|
0.90
|
0.75
|
0.50
|
0.35
|
1.25
|
0.75
|
6.5
|
6.14
|
14
|
13.73
|
M10
|
M10×1
|
(M10×1.25)
|
10.8
|
10
|
15.63
|
18.74
|
12.45
|
12.34
|
12.77
|
12.5
|
1.15
|
0.95
|
0.65
|
0.50
|
1.55
|
0.95
|
8
|
7.64
|
17
|
16.73
|
M12
|
M12×1.5
|
(M12×1.25)
|
13
|
12
|
17.37
|
20.91
|
14.75
|
14.64
|
15.07
|
14.8
|
1.40
|
1.20
|
0.80
|
0.60
|
1.55
|
0.95
|
10
|
9.64
|
19
|
18.67
|
M14
|
(M14×1.5)
|
—
|
15.1
|
14
|
19.57
|
24.27
|
16.75
|
16.64
|
17.07
|
16.8
|
1.80
|
1.60
|
1.0
|
0.80
|
1.9
|
1.1
|
11
|
10.3
|
22
|
21.67
|
M16
|
M16×1.5
|
—
|
17.3
|
16
|
21.57
|
26.51
|
18.735
|
18.605
|
19.13
|
18.8
|
1.80
|
1.60
|
1.0
|
0.80
|
1.9
|
1.1
|
13
|
12.3
|
24
|
23.67
|
注:尽可能不采用括号内的规格。