Schlage B571 626 Medium-Duty Deadbolt With Occupancy Indicator – Satin ChromeB571 626 Suitable for washroom changeroom applications and retail changing rooms Architectural quality for medium duty commercial applications High quality satin chrome finish For 1 3 8 to 2 door thickness Adjustable backset (2 3 8 and 2 3 4) with lock in place helix design Emergency key included Non handed field reversible 10% larger diameter deadbolt Thick metal security strike backing plate on jamb has third screw for stronger anchoring Large easy