六角薄螺母细牙(摘自GB/T 6173-2000)
螺纹规格为M8×1～M64×4、细牙螺纹、性能等级为04、05、A2-025、A4-025、A2-035、A4-035、CU2、CU3和AL4级、产品等级为A和B级倒角的六角薄螺母。
A级用于D≤16mm；B级用于D＞16mm的螺母。
标记示例：
螺纹规格D＝M16×1.5、细牙螺纹、性能等级为05级、不经表面处理、产品等级为A级倒角的六角薄螺母的标记：
螺母 GB/T 6173 M16×1.5
螺纹规格为M8×1～M64×4、细牙螺纹的六角薄螺母：
螺纹规格
D×P
|
da
|
dw
min
|
e
min
|
m
|
mw
min
|
s
|
max
|
min
|
max
|
min
|
公称=max
|
min
|
M8×1
|
8.75
|
8.00
|
11.63
|
14.38
|
4
|
3.7
|
2.96
|
13
|
12.73
|
M10×1
|
10.8
|
10.0
|
14.63
|
17.77
|
5
|
4.7
|
3.76
|
16
|
15.73
|
M12×1.5
|
13
|
12
|
16.63
|
20.03
|
6
|
5.7
|
4.56
|
18
|
17.73
|
M16×1.5
|
17.3
|
16.0
|
22.49
|
26.75
|
8
|
7.42
|
5.94
|
24
|
23.67
|
M20×1.5
|
21.6
|
20.0
|
27.7
|
32.95
|
10
|
9.1
|
7.28
|
30
|
29.16
|
M24×2
|
25.9
|
24.0
|
33.25
|
39.55
|
12
|
10.9
|
8.72
|
36
|
35
|
M30×2
|
32.4
|
30.0
|
42.75
|
50.85
|
15
|
13.9
|
11.12
|
46
|
45
|
M36×3
|
38.9
|
36.0
|
51.11
|
60.79
|
18
|
16.9
|
13.52
|
55
|
53.8
|
M42×3
|
45.4
|
42.0
|
59.95
|
71.3
|
21
|
19.7
|
15.76
|
65
|
63.1
|
M48×3
|
51.8
|
48.0
|
69.45
|
82.6
|
24
|
22.7
|
18.16
|
75
|
73.1
|
M56×4
|
60.5
|
56.0
|
78.66
|
93.56
|
28
|
26.7
|
21.36
|
85
|
82.8
|
M64×4
|
69.1
|
64.0
|
88.16
|
104.86
|
32
|
30.4
|
24.32
|
95
|
92.8
|
非优选的螺纹规格
螺纹规格
D×P
|
da
|
dw
min
|
e
min
|
m
|
mw
min
|
s
|
max
|
min
|
max
|
min
|
公称=max
|
min
|
M10×1.25
|
10.8
|
10.0
|
14.63
|
17.77
|
5.0
|
4.7
|
3.76
|
16.00
|
15.73
|
M12×1.25
|
13
|
12
|
16.63
|
20.03
|
6.0
|
5.7
|
4.56
|
18.00
|
17.73
|
M14×1.5
|
15.1
|
14.0
|
19.64
|
23.36
|
7.00
|
6.42
|
5.14
|
21.00
|
20.67
|
M18×1.5
|
19.5
|
18.0
|
24.85
|
29.56
|
9.00
|
8.42
|
6.74
|
27.00
|
26.16
|
M20×2
|
21.6
|
20.0
|
27.7
|
32.95
|
10.0
|
9.1
|
7.28
|
30.00
|
29.16
|
M22×1.5
|
23.7
|
22.0
|
31.35
|
37.29
|
11.0
|
9.9
|
7.92
|
34
|
33
|
M27×2
|
29.1
|
27.0
|
38
|
45.2
|
13.5
|
12.4
|
9.92
|
41
|
40
|
M33×2
|
35.6
|
33.0
|
46.55
|
55.37
|
16.5
|
15.4
|
12.32
|
50
|
49
|
M39×3
|
42.1
|
39.0
|
55.86
|
66.44
|
19.5
|
18.2
|
14.56
|
60.0
|
58.8
|
M45×3
|
48.6
|
45.0
|
64.7
|
76.95
|
22.5
|
21.2
|
16.96
|
70.0
|
68.1
|
M52×4
|
56.2
|
52.0
|
74.2
|
88.25
|
26.0
|
24.7
|
19.76
|
80.0
|
78.1
|
M60×4
|
64.8
|
60.0
|
83.41
|
99.21
|
30.0
|
28.7
|
22.96
|
90.0
|
87.8
|
