小六角特扁细牙螺母(摘自GB 808-88)
螺纹规格为M4×0.5~M24×1的小六角特扁细牙螺母。A级用于D≤16×1的螺母;B级用于D>16×1的螺母。
标记示例:
螺纹规格D=M10×1、材料为Q215、不经表面处理的上六角特扁细牙螺母的标记:
螺母 GB 808 M10×1
螺纹规格为M4×0.5~M24×1的小六角特扁细牙螺母:
螺纹规格
D×P
|
e
min
|
m
|
s
|
max
|
min
|
max
|
min
|
M4×0.5
|
7.66
|
1.7
|
1.3
|
7
|
6.78
|
M5×0.5
|
8.79
|
1.7
|
1.3
|
8
|
7.78
|
M6×0.75
|
11.05
|
2.4
|
2.0
|
10
|
9.78
|
M8×1
|
13.25
|
3
|
2.6
|
12
|
11.73
|
M8×0.75
|
13.25
|
2.4
|
2.0
|
12
|
11.73
|
M10×1
|
15.51
|
3
|
2.6
|
14
|
13.73
|
M10×0.75
|
15.51
|
2.4
|
2.0
|
14
|
13.73
|
M12×1.25
|
18.9
|
3.74
|
3.26
|
17
|
16.73
|
M12×1
|
18.9
|
3
|
2.6
|
17
|
16.73
|
M14×1
|
21.1
|
3.2
|
2.8
|
19
|
18.67
|
M16×1.5
|
24.49
|
4.24
|
3.76
|
22
|
21.67
|
M16×1
|
24.49
|
3.2
|
2.8
|
22
|
21.67
|
M18×1.5
|
26.75
|
4.24
|
3.76
|
24
|
23.16
|
M18×1
|
26.75
|
3.44
|
2.96
|
24
|
23.16
|
M20×1
|
30.14
|
3.74
|
3.26
|
27
|
26.16
|
M22×1
|
33.53
|
3.74
|
3.26
|
30
|
29.16
|
M24×1.5
|
35.72
|
4.24
|
3.76
|
32
|
31
|
M24×1
|
35.72
|
3.74
|
3.26
|
32
|
31
|