The Hillman No. 8-18 x 3/4 in. L hex washer head self-drilling screws possess a drill point enabling it to drill its hole in thin gauge steel. The sharp threads create their mating thread when drilled into the material. No pre-drilled pilot holes are necessary. These screws are made of high-quality steel for durability and strength. The hex washer head provides a secure grip, while the self-drilling design makes for quick and easy installation