• For keyed exterior doors • Both bell-shaped 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 standard and adjustable 2-3/8 and 2-3/4 optional • DOOR THICKNESS: 1-3/8 to 1-3/4 • CYLINDER: 5-pin • FACEPLATES: 1 x 2-1/4 round corner • STRIKES: 2-1/4 full lip round corner • BOLT: 1/2 throw • HANDING: Reversible for right or left hand doors • ANSI/BHMA: Grade 3 • 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. • BOXED • Round Corner Latch & Strike • Finish=Satin Chrome • Keying=K3/SMT