12-7X4 6 Lobe Flat Nib Coarse Thread Type17 Exterior screw Part Thread 18 8 Stainless Steel (Pack Qty 300) BC-1264DTF17188

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