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 M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 200 HV, zinc flake | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 200 HV, hot dip galv. | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 200 HV | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 140 HV, zinc plated | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 140 HV, zinc flake | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 140 HV, hot dip galv. | 4 | 0 | 0.04 |
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| Washer M28 DIN 125 A | — | A - without chamfer | Flat washer | 29 | 50 | M28 | — | 140 HV | 4 | 0 | 0.04 |
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| Stainless steel spring washer M52 DIN 127 A | — | A - sharp edges | Spring washer (grover) | 54.5 | 83 | M52 | — | X5CrNiMo17-12-2 / 1.4401 / 316 / A4 | 21.2 | 8 | 0.19 |
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| Stainless steel spring washer M52 DIN 127 A | — | A - sharp edges | Spring washer (grover) | 54.5 | 83 | M52 | — | X5CrNi18-10 / 1.4301 / 304 / A2 | 21.2 | 8 | 0.19 |
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| High-strength washer M20 HV EN 14399-6 | — | — | High-strength flat washer | 21 | 36.38 | M20 | — | C45 / 1.0530, hot dip galv. | 4 | 0 | 0.02 |
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