8-18X1 1/2 Square Recess Flat Head Fully Threaded Self Drilling Screw Zinc (Pack Qty 4,000) BC-0824KQF

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 tapsYou may also like 8X2 1/2 Square Recess Round Washer Head Deep Thread Type 17 Wood Screw 2/3 Thread Black Oxide (Pack Qty 1,000) BC-0840DQRW17DB.