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) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stainless washer M90 DIN 125 B | — | B - with chamfer | Flat washer | 93 | 160 | M90 | — | X5CrNi18-10 / 1.4301 / 304 / A2 - 200 HV | 12 | 0 | 1.27 |
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| Stainless washer M90 DIN 125 B | — | B - with chamfer | Flat washer | 93 | 160 | M90 | — | X5CrNiMo17-12-2 / 1.4401 / 316 / A4 - 140 HV | 12 | 0 | 1.27 |
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| Stainless washer M90 DIN 125 B | — | B - with chamfer | Flat washer | 93 | 160 | M90 | — | X5CrNi18-10 / 1.4301 / 304 / A2 - 140 HV | 12 | 0 | 1.27 |
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| Spring washer M4 ASME B18.21.2M | — | — | Spring washer (grover) | 0 | 0 | M4 | — | J404 | 0 | 0 | 0 |
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| Spring washer M4 ASME B18.21.2M | — | — | Spring washer (grover) | 0 | 0 | M4 | — | J403 | 0 | 0 | 0 |
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| Spring washer M4 ASME B18.21.2M | — | — | Spring washer (grover) | 0 | 0 | M4 | — | F436 Type 1 | 0 | 0 | 0 |
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| Spring washer M4 ASME B18.21.2M | — | — | Spring washer (grover) | 0 | 0 | M4 | — | A320 Gr. L7 | 0 | 0 | 0 |
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| Stainless steel Belleville spring (washer) B90 DIN 2093 | — | B - standard | Disc spring | 0 | 0 | B90 | — | X10CrNi18-8 / 1.4310 | 0 | 3.5 | 0.13 |
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| Spring washer M14 DIN 7980 | — | — | Spring washer (grover) | 14.2 | 21.1 | M14 | — | FSt | 6 | 3 | 0 |
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| Washer 7/16" Type A Narrow ASME B18.21.1 | — | Type A | Flat washer | 0 | 0 | — | — | F436 Type 3 | 0 | 0 | 0.04 |
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