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PKTZ1012VP is a Reliable 100-pack of #10 x 1/2 in. TEK self-drilling screws. Made of steel with a zinc finish, these screws feature a pan head and square drive. Their self-drilling point is designed to simplify fastening without requiring a pilot hole in suitable applications. They are commonly used for metal fastening, including ventilation duct applications. Verify the material and fastening requirements before installation to ensure the screw is appropriate for the application.