• For keyed exterior doors • Both Colonial style 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; 2-1/4 doors optional • CYLINDER: 5-pin • FACEPLATES: 1 x 2-1/4 round corner • STRIKES: 2-1/4 full lip round corn • BOXED • Round Corner Latch & Strike • Finish=Satin Nickel • Keying=K3/SMT