System of Measurement System of Measurement |
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For Screw Size For Screw Size |
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Material Material |
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Finish Finish |
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Washer Type Washer Type | Show |
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![]() | For Foam Insulation |
Washer Type Washer Type | Hide |
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Hardness Rating Hardness Rating |
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Thickness Thickness |
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More
These washers have prongs that pierce foam insulation so they stay in place. Use them with self-sinking flat head (bugle head) screws. They are galvanized steel for corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID | OD | Thick. | Prong Lg. | Pkg. Qty. | Pkg. | |
Galvanized Steel | |||||||
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No. 8 | 0.175" | 1.250" | 0.020"-0.024" | 5/16" | 50 | 000000000 | 00000 |