Screws with large threads for use in sheet metal sometimes also used in plastic, fiberglass, or wood.
Sheet metal screws, Zinc plated steel, 5/16" x 1" |
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Self drillingScrews with coarse threads and a drill point end for use in thicker gauge steel. |
See also |
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Wood screwsScrews with a smooth shank and tapered point for use in wood. |