US, Zinc plated steel, 1-1/4", Phillips, 20
US Fasteners, Zinc plated steel, 1-1/4", Phillips, 20 |
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Sheet metal screwsScrews with large threads for use in sheet metal sometimes also used in plastic, fiberglass or wood. |
Machine screwsScrews with machine threads for use with a nut or in a tapped hole. |
Drywall screwsConstruction screws intended for fastening drywall sheets to studs. |