8-32X1/2 Phillips Flt Undercut Full Thread Self Drill Screw Machine Sc Thread  Zinc (Pack Qty 10,000) BC-0808KPUMS

Phillips Flt Undercut Full Thread Self Drill Screw Machine Sc Thread Zinc

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