Simplex 7104-26D-41 Auxiliary Pushbutton Lock with Thumbturn, Deadlocking Latch, 2-3/8" to 2-3/4" Adjustable Backset, Satin Chrome

The 7100 Series lockset provides fully mechanical primary or auxiliary pushbutton access control by exterior combination, while allowing free egress at all times by interior thumbturn. Deadbolt models are manually relocking. Deadlocking latch models automatically relock each time the door closes. The streamlined housing with integrated pull makes the lock ideal for front and rear doors, garages, conference rooms, offices, garden cabanas, utility rooms and workshops. 7100 Series locks mount above the existing lockset, or can be used alone. Features:
• Easily installs on wood or metal doors
• Latch holdback is standard on 7100 Series deadlocking latch models
• Housing covers existing 2 1⁄8" (54 mm) bores