Product DescriptionThese self-drilling screws are highly versatile and are used to attached metal, wood, fiberglass and plastic. The sharp threads draw material together and ensure a secure hold. There is no pre-drilling required for these screws.From the ManufacturerThese self-drilling screws are highly versatile and are used to attached metal, wood, fiberglass, and plastic. The sharp threads draw material together and ensure a secure hold. There is no pre-drilling required for these screws.