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Drywall screws, 20

Drywall screws

Construction screws intended for fastening drywall sheets to studs.

Drywall screws, 20

Phillips bugle head self drilling

Phillips bugle head, Self drilling

Bugle heads are countersunk with concave sides and a flat top. Phillips drive is x-shaped for installation with a Phillips screw driver. Self drilling screws have a drill bit point.

Zinc plated steel
A low carbon steel for general use. Zinc plated for moderate corrosion resistance.
Steel black phosphate finish
A low carbon steel for general use. A chemically produced coating that leaves the steel surface with a matte black finish.