Conical spring washers covered in this standard are deemed to be spring washers designed for the use for bolt/nut assemblies involving bolts of property classes 8.8 to10.9 as specified in ISO 898 part 1. They are intended to counteract the effect of setting which results in bolt/nut assemblies working loose (see DIN 267 part 26). They do not effectively prevent loosening of the assembly under varying radial load and are designed for use with short bolt predominantly subject to thrust.
Nominal
Size
d1
H14
d2
h14
s
3 )
H
(max1 min2)
Mass
7.85 (kg/dm3)per 1000 units in kg »
For thread size
24)
2.2
5
0.4
0.6
0.5
0.05
2
2.54)
2.7
6
0.5
0.72
0.61
0.09
2.5
34)
3.2
7
0.6
0.85
0.72
0.14
3
3.54)
3.7
8
0.8
1.06
0.92
0.25
3.5
4
4.3
9
1
1.3
1.12
0.38
4
5
5.3
11
1.2
1.55
1.35
0.69
5
6
6.4
14
1.5
2
1.7
1.43
6
7
7.4
17
1.75
2.3
2
2.53
7
8
8.4
18
2
2.6
2.24
3.13
8
10
10.5
23
2.5
3.2
2.8
6.45
10
12
13
29
3
3.95
3.43
12.4
12
14
15
35
3.5
4.65
4.04
21.6
14
16
17
39
4
5.25
4.58
30.4
16
18
19
42
4.5
5.8
5.08
38.9
18
20
21
45
5
6.4
5.6
48.8
20
22
23
49
5.5
7.05
6.15
63.5
22
24
25
56
6
7.75
6.77
92.2
24
27
28
60
6.5
8.35
7.3
113
27
30
31
70
7
9.2
8
170
30
1)Maximum size at delivery.
2)Minimum size at the test for permanent
set as specified in DIN 267 part 26.
3)See DIN 1644 for limit deviation for s
not exceeding than 6 mm and DIN1543 for s
exceeding 6 mm
4)Test value for the spring force test as
describing in DIN 26/part 26 have not been
specified for this nominal size
