Kaba Simplex 91726D Auxiliary Lock with Thumbturn; Deadlocking Spring Latch with Latch Holdback for 1-3/8" to 1-1/2" Door Satin Chrome Finish

Mechanical Pushbutton Lock,Eliminates Problems and Costs Associated with Issuing, Controlling and Collecting Keys and Cards,Provides Fully Mechanical Access Control at All Times While Allowing Free Egress At All Times By Interior Thumbturn,Deadbolt Models Must Be Manually Relocked; Spring Latch Models Automatically Relock Each Time Door Closes,Limited 1 Year Warranty