Simplex Auxiliary Pushbutton Lock w/ Thumbturn 5/8 in. Rim Deadlocking Latch 2-3/8 BS Satin Chrome w/ Black Inside Trim - 7106-26D-41
Gatemaster Deadlocking Latch
What Are Deadlocks, Deadlatches & Deadbolts (& Why You Need Them)
Deadlatch Replacement : for Knob & Lever Door Lock : 2 3/4 Inch 70mm & 2 3/8 Inch 60mm Backsets : Works with Commercial Grade 2 and 1 : Fits Schlge,Yale,Kwikset,Toledo &
Sargent 10-3186 10B 10 Line Square Corner Deadlocking Latch, Oil Rubbed Dark Bronze