Small Parts 312007KWSMS Steel Self-Drilling Screw, Zinc Plated Finish, Serrated Hex Washer Head, Hex Drive, 3 Drill Point, 5/16″-18 Thread Size, 1-1/4″ Length (Pack of 25)-Fast Shipping

Description

Steel is often used in applications where strength is the primary consideration

Zinc plating resists corrosion and has a reflective appearance

Hex washer head has a serrated flange for additional grip on the mating surface that resists loosening

Hex drive tightens from the side with a wrench, enabling use when there is no space above for a driver