Self-Drilling Screw - Type BSD - Square Drive Modified Truss Head - Zinc Plated Steel - 10-16 Thread - 1" Long - #3 Drill Point

Self-drilling screws are efficient because they eliminate the need for a pilot hole, tap their own threads, and fasten materials in a single operation. The truss head has a curved surface, extra-wide profile, and a lower profile than most pan head screws. Modified truss heads have extra flange around the outside of the head which increases the bearing force. The square drive has a square-shaped recess designed to be used with square driver. Zinc plated steel offers good corrosion resistance in applications not exposed to excessive moisture.