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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oversized washer M12 DIN 9021 | — | — | Oversized washer (body washer) | 13 | 37 | M12 | — | 140 HV, zinc plated | 3 | 0 | 0.02 |
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| Oversized washer M12 DIN 9021 | — | — | Oversized washer (body washer) | 13 | 37 | M12 | — | 140 HV, zinc flake | 3 | 0 | 0.02 |
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| Oversized washer M12 DIN 9021 | — | — | Oversized washer (body washer) | 13 | 37 | M12 | — | 140 HV, hot dip galv. | 3 | 0 | 0.02 |
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| Oversized washer M12 DIN 9021 | — | — | Oversized washer (body washer) | 13 | 37 | M12 | — | 140 HV | 3 | 0 | 0.02 |
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| Toothed washer M30 DIN 6798 J | — | J - internal teeth | Toothed washer | 31 | 48 | M30 | — | FSt | 4.8 | 1.6 | 0.01 |
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| Spring washer 7/16" ASME B18.21.1 | — | — | Spring washer (grover) | 0 | 0 | — | — | J404 | 0 | 0 | 0 |
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| Spring washer 7/16" ASME B18.21.1 | — | — | Spring washer (grover) | 0 | 0 | — | — | J403 | 0 | 0 | 0 |
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| Spring washer 7/16" ASME B18.21.1 | — | — | Spring washer (grover) | 0 | 0 | — | — | Gr. 8 | 0 | 0 | 0 |
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| Spring washer M48 DIN 7980 | — | — | Spring washer (grover) | 49 | 67 | M48 | — | FSt | 16 | 8 | 0.09 |
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| Stainless steel spring washer 5/8" ASME B18.21.1 | — | — | Spring washer (grover) | 0 | 0 | — | — | AISI 316 | 0 | 0 | 0.01 |
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