12 x 1 1/2 Phillips Oval Sheet Metal Screw 18-8 (A2) Stainless Steel

12 x 1 1/2 Phillips Oval Sheet Metal Screw 18-8 (A2) Stainless Steel . Sheet metal screws or tapping screws are designed to bind sheet metal to wood and sometimes fiberglass. Manufactured with a sharper, more pronounced thread that allows the screw to better tap or penetrate metal surfaces.