System of Measurement System of Measurement |
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Thickness Thickness | Show |
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Thickness Thickness | Hide |
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Finish Finish |
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Material Material |
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Washer Type Washer Type |
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| Notched | Split Lock |
Specifications Met Specifications Met |
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Hardness Hardness |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Washers
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Notched Washers for Wood

Also called No. 10 Western Timber and Victor washers, these have large ODs to prevent screws from sinking into wood. The notches allow you to temporarily secure them with nails to keep them from rotating during installation.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
Iron | |||||||
|---|---|---|---|---|---|---|---|
| 5/8" | 0.688" | 2.750" | 0.313" | Rockwell B62 | 5 | 000000000 | 000000 |
Split Lock Washers for Socket Head Screws

Also known as high-collar lock washers, these have smaller outside diameters than standard split lock washers to fit neatly under socket head cap screws. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.
Black-oxide steel washers are mildly corrosion resistant in dry environments.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards. Steel washers also meet standards for material properties.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 1/4" | 1.280" | 1.790" | 0.313" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 1/8" | 1.153" | 1.663" | 0.313" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
316 Stainless Steel | ||||||||
| 1 1/4" | 1.280" | 1.790" | 0.313" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 0000 |
Steel | ||||||||
| 1 1/4" | 1.280" | 1.790" | 0.313" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/8" | 1.153" | 1.663" | 0.313" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |



























