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2. Material Composition Typically made from high-strength steel, roof self-drilling screws are often coated with corrosion-resistant materials such as zinc or polymer to enhance durability. This resistance to rust and degradation is vital, especially in harsh weather conditions, ensuring the longevity of the roofing system.

A hex head self-drilling screw is a type of screw that incorporates a hexagonal head, allowing it to be driven with a wrench or socket, offering greater torque and stability during installation. The self-drilling feature means that the screw has a unique point design that allows it to drill its own pilot hole in materials like metal, wood, and plastic without the need for pre-drilling. This eliminates the need for additional tools and saves time, making it an efficient choice for various applications.