System of Measurement System of Measurement |
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Material Material |
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Finish Finish |
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Thickness Thickness | Show |
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Thickness Thickness | Hide |
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Washer Type Washer Type |
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![]() | Split Lock |
Hardness Hardness |
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Specifications Met Specifications Met |
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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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Split Lock Washers

As a screw is tightened, these washers 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.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
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 Carbon Steel | ||||||||
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1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 00000000 | 000000 |
316 Stainless Steel | ||||||||
1 5/8" | 1.633" | 2.553" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 00000 |
1 3/4" | 1.758" | 2.679" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
1 5/8" | 1.633" | 2.553" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C35 | ASME B18.21.1 | 1 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
Steel | ||||||||
1 5/8" | 1.663" | 2.553" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
1 3/4" | 1.789" | 2.679" | 0.389" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |