12-24X1 1/4 Phillips Flt Undercut Full Thread Self Drill Screw Machine Sc Thread Zinc (Pack Qty 3,000) BC-1220KPUMS

Type BSD: A tapping screw with spaced threads and a drill point which drills its own hole. Type CSD: A thread forming screw with machine screw thread pitch and a drill point which drills its own hole. Both types allow the screw to form mating threads and produce a complete fastening system in a single operation 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. These screws are normally used with thicker materials. All self-drilling screws offer economic benefits reduces labor and tooling costs; reduces or eliminates drill bits and tapsYou may also like 6-20X1 Slotted Pan Self Tapping Screw Type A B Fully Threaded Zinc (Pack Qty 9,000) BC-0616ABSP.