Simpson GW100-R100 1/2" Dome Washer And 1" Pin w/Fuel Cell, Pkg 100 Strong-Tie SDWS Timber Screws Treated Wood & Moisture-Prone Environments:

Treated Wood & Moisture-Prone Environments: The ZMAX coating protects against corrosion

Strong Drive® WSNTL Wood Screws

33° collation angle for compatibility with standard framing nail guns

concealed-flange face-mount joist hangers engineered for quick installation and superior load-bearing capacity

Cleaner Finish – Underhead nibs let the head countersink smoothly with less splintering

Simpson GW100-R100 1/2" Dome Washer And 1" Pin w/Fuel Cell, Pkg 100 Strong-Tie SDWS Timber Screws Treated Wood & Moisture-Prone Environments:The Simpson Strong Tie GW is a gas actuated 1 2" dome washer pin designed to fasten building components to concrete. The versatile GW consists of a 1 2" dome washer and a pin of 1 2", 3 4" or 1" in length. The GW is for high volume applications and can be used with common powder actuated tools for fastening into harder substrates (structural steel or extra hard concrete) when required.