DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Washers
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Washers with Material Certification
These washers come with a traceable lot number and a physical and chemical test report. They’re zinc yellow-chromate plated for corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 000000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 00000 |