Dewalt DWT1400100 Tapper-Pro Blue Hex Hd Box 100 (Permaseal) 6.3X32

One Piece Self-Tapping Concrete Screw For Use In A Variety Of Base Materials Including Wood. Features A Corrosion Resistant Perma-Seal Coating. Optimised Thread Design For Lower Installation Torque. Incorporates A Gimlet Drill Point For Wood (No Pre-Drilling Required) The Only Concrete Screw To Meet The 2012 Ibc And Irc Standards For 4 Different Base Materials.applications: Screen Enclosures. Exterior Metal Lighting. Storm Shutters. Marine Applications.PTDFORDIRDWT1400100