Drywall screws, Phillips bugle head, Self drilling, Steel black phosphate finish

Phillips bugle head self drilling

Drywall screw diameter is measured on the outside of the threads.

Phillips bugle head self drilling drywall screw diameter

Diameter and Thread count

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Fits a standard 1/4" bit holder. Designed for use with drywall screws. The tips of these bits are narrower than those of standard phillips bits.

Fits a standard 1/4" quick change bit holder. Designed for use with drywall screws. The tips of these bits are narrower than those of standard phillips bits.