Washers
Washers are flat fastening elements in the shape of a disk or ring, installed between the bearing surface of a nut and the surface of the connected part. Their main purpose is to evenly distribute the clamping load created by the fastening element, prevent mechanical damage to the surfaces of the connected components, and reduce the likelihood of unintentional loosening of the threaded connection due to vibrations or other factors.
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| Name | Compound | Execution | Fastener type | Inner diameter, d1 (mm) | Outer diameter, d2 (mm) | Size | Standard | Steel grade | Washer height, h (mm) | Washer thickness, s (mm) | Weight 1 pc (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Washer M30 DIN 125 A | — | A - without chamfer | Flat washer | 31 | 56 | M30 | — | 200 HV | 4 | 0 | 0.05 |
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| Washer M30 DIN 125 A | — | A - without chamfer | Flat washer | 31 | 56 | M30 | — | 140 HV, zinc plated | 4 | 0 | 0.05 |
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| Washer M30 DIN 125 A | — | A - without chamfer | Flat washer | 31 | 56 | M30 | — | 140 HV, zinc flake | 4 | 0 | 0.05 |
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| Washer M30 DIN 125 A | — | A - without chamfer | Flat washer | 31 | 56 | M30 | — | 140 HV, hot dip galv. | 4 | 0 | 0.05 |
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| Washer M30 DIN 125 A | — | A - without chamfer | Flat washer | 31 | 56 | M30 | — | 140 HV | 4 | 0 | 0.05 |
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| Stainless steel Belleville spring (washer) B10 DIN 2093 | — | B - standard | Disc spring | 0 | 0 | B10 | — | X10CrNi18-8 / 1.4310 | 0 | 0.4 | 0 |
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| Oversized washer M4 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 4.3 | 12 | M4 | — | 300 HV, zinc plated | 1 | 0 | 0 |
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| Oversized washer M4 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 4.3 | 12 | M4 | — | 300 HV | 1 | 0 | 0 |
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| Oversized washer M4 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 4.3 | 12 | M4 | — | 200 HV, zinc flake | 1 | 0 | 0 |
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| Oversized washer M4 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 4.3 | 12 | M4 | — | 200 HV | 1 | 0 | 0 |
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