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Slotted Hex Self-Piercing ScrewsHillman Item #47186
Self-piercing sheet metal screws are designed for joining thin pieces of metal to wood, fiberglass, or metal, primarily through a pre-drilled or own generated hole in light gauge metal. While penetrating metal, these screws tap their own mating threads. Their zinc plating provides durability and moderate corrosion resistance. Use for general repair or around the house.