2型六角螺母 细牙(摘自GB/T 6176-2000)
螺纹规格为M8×1~M36×3、细牙螺纹、性能等级为8、10和12级、产品等级为A和B级的2型六角螺母。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10级、表面氧化、产品等级为A级的2型六角螺母的标记:
螺母 GB/T 6176 M16×1.5
螺纹规格为M8×1~M36×3、细牙螺纹的2型六角螺母:
螺纹规格
|
c
|
da
|
dw
min
|
e
min
|
m
|
mw
min
|
s
|
D
|
P
|
max
|
min
|
max
|
min
|
max
|
min
|
公称=max
|
min
|
M8
|
1
|
0.6
|
0.15
|
8.75
|
8.00
|
11.63
|
14.38
|
7.5
|
7.14
|
5.71
|
13
|
12.73
|
M10
|
1
|
0.6
|
0.15
|
10.8
|
10.0
|
14.63
|
17.77
|
9.3
|
8.94
|
7.15
|
16
|
15.73
|
M12
|
1.5
|
0.6
|
0.15
|
13
|
12
|
16.63
|
20.03
|
12
|
11.57
|
9.26
|
18
|
17.73
|
M16
|
1.5
|
0.8
|
0.2
|
17.3
|
16.0
|
22.49
|
26.75
|
16.4
|
15.7
|
12.56
|
24
|
23.67
|
M20
|
1.5
|
0.8
|
0.2
|
21.6
|
20.0
|
27.7
|
32.95
|
20.3
|
19.0
|
15.2
|
30
|
29.16
|
M24
|
2
|
0.8
|
0.2
|
25.9
|
24.0
|
33.25
|
39.55
|
23.9
|
22.6
|
18.08
|
36
|
35
|
M30
|
2
|
0.8
|
0.2
|
32.4
|
30.0
|
42.75
|
50.85
|
28.6
|
27.3
|
21.84
|
46
|
45
|
M36
|
3
|
0.8
|
0.2
|
38.9
|
36.0
|
51.11
|
60.79
|
34.7
|
33.1
|
26.48
|
55
|
53.8
|
非优选的螺纹规格:
螺纹规格
|
c
|
da
|
dw
min
|
e
min
|
m
|
mw
min
|
s
|
D
|
P
|
max
|
min
|
max
|
min
|
max
|
min
|
公称=max
|
min
|
M10
|
1.25
|
0.60
|
0.15
|
10.8
|
10.0
|
14.63
|
17.77
|
9.30
|
8.94
|
7.15
|
16.00
|
15.73
|
M12
|
1.25
|
0.60
|
0.15
|
12
|
13
|
16.63
|
20.03
|
12.00
|
11.57
|
9.26
|
18.00
|
17.73
|
M14
|
1.5
|
0.60
|
0.15
|
15.1
|
14.0
|
19.64
|
23.36
|
14.1
|
13.4
|
10.72
|
21.00
|
20.67
|
M18
|
1.5
|
0.8
|
0.2
|
19.5
|
18.0
|
24.85
|
29.56
|
17.6
|
16.9
|
13.52
|
27.00
|
26.16
|
M20
|
2
|
0.8
|
0.2
|
21.6
|
20.0
|
27.7
|
32.95
|
20.3
|
19.0
|
15.2
|
30.00
|
29.16
|
M22
|
1.5
|
0.8
|
0.2
|
23.7
|
22.0
|
31.35
|
37.29
|
21.8
|
20.5
|
16.4
|
34
|
33
|
M27
|
2
|
0.8
|
0.2
|
29.1
|
27.0
|
38
|
45.2
|
26.7
|
25.4
|
20.32
|
41
|
40
|
M33
|
2
|
0.8
|
0.2
|
35.6
|
33.0
|
46.55
|
55.37
|
32.5
|
30.9
|
24.72
|
50
|
49
|