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Spring washer grover
DIN 7980
Purpose
It is used to prevent unscrewing fasteners.
Characteristics
Packaging and labeling
Packaging
In cardboard boxes of 25 kg. Cardboard boxes are for Euro pallets.
Specifications
Features:
|
d |
d2 |
s |
Weight 1000 pcs, kg |
||
|
Nominal value |
Deviation |
Nominal value |
Deviation |
||
|
М6 |
6,5* |
+0,58* |
1,4* |
±0,1 |
0,376 |
|
М8 |
8,5* |
2,0 |
1,034 |
||
|
М10 |
10,2 |
+0,7* |
2,5 |
±0,15 |
1,96 |
|
М12 |
12,2 |
3,0* |
3,45 |
||
|
М14 |
14,2 |
3,2* |
4,48 |
||
|
М16 |
16,3 |
3,5 |
±0,2 |
5,94 |
|
|
М18 |
18,3 |
+0,84 |
4,0* |
6,6 |
|
|
М20 |
20,5 |
4,5 |
12,3 |
||
|
М22 |
22,5 |
5,0* |
13,6 |
||
|
М24 |
24,5 |
5,5* |
18,1 |
||
|
М27 |
27,5 |
6,0* |
20,6 |
||
|
М30 |
30,5 |
+1,0 |
6,5* |
32,0 |
|
|
М36 |
36,5 |
8,0* |
±0,25 |
52,5 |
|
|
М42 |
42,5 |
9,0* |
80,0 |
||
* - difference in dimensions of DIN 7980 and GOST 6402-70
Steel grade: 65G, 70
Coating types:
- electroplating up to 20 microns;
- uncoated with oiling.
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