Model: 553 Gibson Single Cylinder Handle set (Keyed 1 Side)
Dual Point Locking Handlesets are easily installed in the same manner as locksets or levers. Keyed from the exterior, they feature a locking turnbutton on the interior knob or lever.
Latch bolt operated by thumb piece outside and grip inside, except when both are locked by key outside or thumb turn inside. Deadbolt operated by key outside or thumb turn inside. Top and bottom locks are both keyed alike from factory. Adjustable 2-3/8'-2-3/4' backset radius corner deadbolt with both 2-3/8' and 2-3/4' backset radius corner metal dead latches included. Radius corner full-lip latch strike, and radius corner deadlock strike.