• One-step installation with self-drilling design that eliminates the need for pilot holes. • Integrated drill point ideal for fastening in sheet metal, light-gauge steel, and light assemblies. • Galvanized zinc coating for increased durability and rust resistance. • Hex head with washer-type flange that distributes pressure and increases clamping force on metal surfaces. • Compatible with standard 1/4 inch hex bits, nut drivers, and cordless drills. • Suitable for HVAC ducts, metal structures, garage door installation, roofing, and fencing.