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Washer Type Washer Type |
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| Flat | Split Lock |
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| Wedge Lock |
Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Serration Location Serration Location |
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About Washers
More
General Purpose Washers
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 stainless steel and 17-7 PH stainless steel washers have good chemical resistance and may be mildly magnetic. Zinc yellow-chromate and chrome-plated steel washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
USS Washers
USS washers generally have a larger ID and OD than SAE washers.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic. Zinc-plated steel washers are corrosion resistant in wet environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc-plated washers.
Black corrosion-resistant-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.250" | Not Rated | __ | 1 | 000000000 | 000000 |
Black Ultra-Corrosion-Resistant Coated Steel | ||||||||
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | ||||||||
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
Steel | ||||||||
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
Washers for Structural Applications
Designed for use with A325 structural screws, studs, and nuts, these washers are often used for construction and exterior building applications.
Hot-dipped galvanized washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
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.
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.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards.
For technical drawings and 3-D models, click on a part number.
Wedge Lock Washers
These two-piece washers provide more locking power than split, tooth, and spring lock washers. Wedges on the inside lock the two pieces together, and serrations on the exterior grip surfaces to resist loosening from high vibration and shifting. Washers are reusable.
Zinc-flake-coated steel washers are corrosion resistant in wet environments.
316 stainless steel and zinc-flake-coated steel washers are comparable to NORD-LOCK® Series washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
Zinc-Flake-Coated Steel | |||||||
|---|---|---|---|---|---|---|---|
| 2 1/4", M56 | 2.330" | 3.350" | 0.270"-0.290" | Rockwell C46 | 1 | 000000000 | 000000 |