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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flat washer M30 DIN 7349 | — | — | Flat washer | 31 | 68 | M30 | — | 100 HV, zinc flake | 0 | 10 | 0.23 |
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| Flat washer M30 DIN 7349 | — | — | Flat washer | 31 | 68 | M30 | — | 100 HV, hot dip galv. | 0 | 10 | 0.23 |
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| Flat washer M30 DIN 7349 | — | — | Flat washer | 31 | 68 | M30 | — | 100 HV | 0 | 10 | 0.23 |
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| Toothed washer M3 DIN 6798 A | — | A - external teeth | Toothed washer | 3.2 | 6 | M3 | — | FSt | 1.2 | 0.4 | 0 |
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| Flat Stainless washer M16 DIN 7349 | — | — | Flat washer | 17 | 40 | M16 | — | X5CrNiMo17-12-2 / 1.4401 / 316 / A4 | 0 | 6 | 0.05 |
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| Flat Stainless washer M16 DIN 7349 | — | — | Flat washer | 17 | 40 | M16 | — | X5CrNi18-10 / 1.4301 / 304 / A2 | 0 | 6 | 0.05 |
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| Oversized washer M20 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 21 | 60 | M20 | — | 300 HV, zinc plated | 4 | 0 | 0.08 |
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| Oversized washer M20 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 21 | 60 | M20 | — | 300 HV | 4 | 0 | 0.08 |
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| Oversized washer M20 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 21 | 60 | M20 | — | 200 HV, zinc flake | 4 | 0 | 0.08 |
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| Oversized washer M20 EN ISO 7093-1 | — | — | Oversized washer (body washer) | 21 | 60 | M20 | — | 200 HV | 4 | 0 | 0.08 |
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