kwikset 740H-3SGC Hancock Entry Door Lock Smart Key with New Chassis, Bright Brass

or keyed exterior doors. Both knobs lock or unlock by key outside or turnbutton inside. DOOR PREP: 2-1/8" Cross Bore, 1" Edge Bore, 1" x 2-1/4" Latch Face. BACKSET: 2-3/8" - 2-3/4" adjustable. DOOR THICKNESS: 1-3/4" doors standard and 2-1/4" doors optional. CYLINDER: 5-pin SMT optional. FACEPLATES: 1" x 2-1/4" round corner. STRIKE: 2-1/4" full lip. BOLT: 1" throw. Nickel plated. HANDING: Reversible for right or left hand doors. ANSI/BHMA: Grade 2. Locksets with "SmartKey" (denoted SMT) feature allows, in 3 steps, locks to be re-keyed to a spare set of keys. When the spare keys are done being used, the lock can be re-keyed back to the original set of keys; can continually be re-keyed.