10 X 1/2 Hex Washer Head Self Drilling & Tapping Screw Zinc Plated

The Drill Point Has Been Incorporated Into The Screw In The Familiar Twist Drill Design. These Screws Drill Their Own Hole, Form Mating Threads, Fasten Securely And Can Be Used In Steel, Plastics, Composite Materials, Wood Plus Various Laminates.