Drywall screws

Drywall screws, Bugle piercing point

Construction screws intended for fastening drywall sheets to studs.

Drywall screws, Bugle piercing point

Phillips pan head laminating self piercing

Phillips bugle head, Laminating, Piercing point

Laminating screws have deeper and wider set threads to fasten drywall sheets together. Bugle heads are countersunk with concave sides and a flat top. Phillips drive is x-shaped for installation with a phillips screw driver. Piercing screws have a long, sharp point.