Screws with coarse threads and a drill point end for use in thicker gauge steel.
Hex washer heads are six sided for use with a wrench and have a built-in washer. Self drilling screws have a drill bit point.
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A hexagonal head for use with a wrench with a metal-backed neoprene sealing washer and a drill bit point. Self drilling screws have a drill bit point.
Screws with a smooth shank and tapered point for use in wood.
Construction screws intended for fastening drywall sheets to studs.