Description For keyed exterior doors. Both knobs lock or unlock by key outside or turnbutton inside. Features titanium alloy throwbolt core, anti-pick 6 pin system and ultra-strike for jamb brace. 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. 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.