#10 x 1-1/4 Self-Drilling Hex Head Screw, Zinc Plated

Screw, Self-Drilling, Hex Washer Head, #10 x 1-1/4in, Zinc Plated Steel, #2 Drill Point, Drills, taps, and fastens metal-to-metal in one operation, 5/16in Hex, UNC thread