The Hillman Group 560911 10X3 TAP-N-Seal Product Description Metal-to-wood screws for fastening light gauge metal or fiberglass to wood. Bonded neoprene washer under hex head. All screws are a No. 10.Auxiliary retails reflect per each retail. 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 Metal-To-Wood Screws For Fastening Light Gauge Metal Or Fiberglass To Wood, Bonded Neoprene Washer Under Hex Head, All Screws Are A No, 10,Auxiliary Retails Reflect Per Each Retail Neoprene Washer Silver Ceramic Coated 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.