The Hillman Group 561036 12-14X1 HWH Drill Screw Product Description Hex washer head neoprene washer. Zinc. 100-piece per package. From the Manufacturer These self-drilling screws are used in wood, fiberglass and metal, and they possess a drill point enabling it to drill in its own hole in thin gauge steel. The sharp threads create their own mating thread when drilled into the material. No pre-drilled pilot holes necessary. Features Hex Washer Head Neoprene Washer, Zinc, 100-Piece Per Package Also Known As Sheet Metal Screws Neoprene Washer From The Brand: The Hillman Group USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.