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Simplex - 91926D Kaba 900 Series Metal Mechanical Pushbutton Auxiliary Lock with Thumbturn, Fits 44mm to 54mm Thick Door, 16mm Deadlocking Spring Latch, Flat Front, Satin Chrome Finish
The 900 Series Simplex auxiliary lockset provides fully mechanical pushbutton access control with no electrical wiring, electronics, or batteries. Exterior access is by combination. Egress is by interior thumbturn and is free at all times. Deadbolt models are manually relocking. Deadlocking spring latch models automatically relock each time the door closes, with standard latch holdback. 900 Series locksets are suitable for commercial or residential applications. Mounts above existing lockset, or can be used alone. The pushbutton design eliminates problems associated with the issue

Price is $164.00
Price: $164.49