The Simpson Strong-Tie® G3 is a portable gas-actuated fastening tool for attaching light-duty fixtures to concrete, steel, CMU, concrete over metal deck, and cold-formed steel (CFS). As a magazine tool, G3 is ideal for attaching drywall track, furring strips, hat track and angle track using GDP and GDPS collated pins. G3 offers you the flexibility of having two tools in one convenient package — a magazine tool that easily converts to a single-shot tool. As a single-shot tool, the G3 is great for attaching mechanical, electrical and plumbing fixtures with preassembled pins/accessories such as washer pins, ceiling clips, tophats and threaded studs. The preassembled pins for the single-shot tool use 0.283-in. headed fasteners with 0.126-in. diameter shanks for stronger fastening performance. Both the single-shot and magazine tool offer portability without the need for cords or hoses, and are actuated with GFC34 gas fuel cells.