12-24X1 1/4 Unslotted Hex washer Self Drilling Screw Full Thread Machine Screw Zinc (Pack Qty 3,000) BC-1220KWMS

Type BSD: May be used to attach plywood, soft woods or composition board to metal, or attach metal to metal. Type CSD: The finer thread pitch reduces friction and driving torques. Type-CSD screws are normally used with thicker materials. The wafer head design allows the screw to set flush in wood and softer materials and provides a clean, finished appearance All self-drilling screws offer economical benefits: reduces labor and tooling costs; reduces or eliminates drill bits and taps