SIMPSON STRONG-TIE QDPRO300SG2 - Quik Drive® Decking AttachmentCommon applications include fastening decking on decks and docks, subfloor to wood or steel, and wall plates, stair treads, sheathing, fiber cement siding to steel. Features Available alone or as part of the PRO300SG2, PROSDD and PROCCS+ systems Expanded depth settings for high density flooring materials Non skid teeth are reversible and replaceable Uniform toenailing and countersink on slick surfaces Sure grip guide tube increases stability for a