Minerallac Sheet Metal Screw, Combination Self-Tapping, Measurement System: Imperial, #10-16, 2-1/2 in Overall Length, Hex Washer, Phillips/Slotted Drive, Steel, Zinc Plated, Sharp Point, #2 or 5/16 in Hex Drive, 0.34 in H x 0.312 in W Head, Class A, Silver