带槽圆螺母（摘自GB 817-88）
螺纹规格为M1.4～M12的带槽圆螺母。
标记示例：
螺纹规格D＝M5、材料为Q235、不经表面处理的A型带槽圆螺母的标停
螺母 GB 817 M5
螺纹规格为M1.4～M12的带槽圆螺母：
螺纹规格
D
|
dk
|
m
|
B
|
n
|
K
|
C
|
d2
|
max
|
min
|
max
|
min
|
max
|
min
|
公称
|
min
|
max
|
M1.4
|
3
|
2.86
|
1.6
|
1.35
|
1.1
|
0.85
|
0.4
|
0.46
|
0.6
|
—
|
0.1
|
—
|
M1.6
|
4
|
3.82
|
2
|
1.75
|
1.2
|
0.95
|
0.4
|
0.46
|
0.6
|
—
|
0.1
|
—
|
M2
|
4.5
|
4.32
|
2.2
|
1.95
|
1.4
|
1.15
|
0.5
|
0.56
|
0.7
|
—
|
0.2
|
—
|
M2.5
|
5.5
|
5.32
|
2.5
|
2.25
|
1.6
|
1.35
|
0.6
|
0.66
|
0.8
|
1.1
|
0.2
|
M1.4
|
M3
|
6
|
5.82
|
3
|
2.70
|
2
|
1.75
|
0.8
|
0.86
|
1
|
1.3
|
0.2
|
M1.4
|
M4
|
8
|
7.78
|
3.5
|
3.2
|
2.5
|
2.25
|
1
|
0.96
|
1.31
|
1.8
|
0.3
|
M1.4
|
M5
|
10
|
9.78
|
4.2
|
3.9
|
2.8
|
2.55
|
1.2
|
1.26
|
1.51
|
2.1
|
0.4
|
M2
|
M6
|
11
|
10.73
|
5
|
4.7
|
3
|
2.75
|
1.6
|
1.66
|
1.91
|
2.5
|
0.4
|
M2
|
M8
|
14
|
13.73
|
6.5
|
6.14
|
4
|
3.70
|
2
|
2.06
|
2.31
|
3.3
|
0.5
|
M2
|
M10
|
18
|
17.73
|
8
|
7.64
|
5
|
4.70
|
2.5
|
2.56
|
2.81
|
4
|
0.5
|
M3
|
M12
|
22
|
21.67
|
10
|
9.64
|
6
|
5.70
|
3
|
3.06
|
3.31
|
5
|
0.8
|
M4
|
