Simpson Trex Composite Deck Screw Plug, Rope Swing, Pkg 375 GDPS Gas Actuated Step Shank Pins W Fuel Cell The Simpson Strong Tie DHUTF Top Flange The Simpson Strong Tie DHUTF Top Flange Fire Wall Hanger offers a reliable solution for connecting floor trusses and joists to wood or concrete masonry walls while maintaining the integrity of two hour fire rated wall assemblies Adhesive retaining caps make overhead and horizontal installation easier by preventing the adhesive from running out of the hole These are designed for use with Simpson Strong Tie DCU composite deck screws and the Auto Set driver bit for a complete hidden deck fasteners system Hide the visible screws holding your Trex composite decking with these deck screw plugs