Simpson TRX20TT Deck-Drive DCU Screw Plug Trex Tiki Torch 75-Pack Heli-Tie Helical Wall Tie Code listed for both building

Code listed for both building and plumbing codes

100 is a 10 diameter 2 Flute Through-Hole Dowel Drill (Through Hole Long Series (77mm))

Does this screw require predrilling through steel framing

SDS Rotary Hammer Drill

Bore Diameter 80mm

Simpson TRX20TT Deck-Drive DCU Screw Plug Trex Tiki Torch 75-Pack Heli-Tie Helical Wall Tie Code listed for both buildingFastening deck boards and trim can result in visible screws which can distract from the beauty of your outdoor project. The Simpson Strong Tie Deck Drive DCU screw plug solution is a complete Hidden Deck Fastening System designed for use with premium DCU Composite screws and consists of DCU screw plugs and the Auto Set Driver bit (each sold separately). The DCU screw plugs are made from major composite and PVC board manufacturers' materials to match