Includes one Polo entry lockset and one #660 deadbolt. For keyed exterior doors. Both knobs locked or unlocked by key outside or turn button inside. Deadbolt operated by key outside and thumb turn inside. Security knobs feature full 1 in solid core throw bolt, all-metal mechanisms, anti-pry shield and pick-resistant 5-pin system. Door prep 2-1/8 in cross bore, 1 in edge bore, 1 in x 2-1/4 in latch face. Backset of 2-3/8 in standard and adjustable 2-3/8 to 2-3/4 in optional. Door thickness 1-3/8 to 1-3/4 in. Cylinder 5-pin. Faceplates of 1 in x 2-1/4 in round corner. Strikes of 1 in x 2-1/4 in full lip round corner. Bolt knob 1/2 in throw, deadbolt 1 in throw. Reversible for right or left-hand doors. ANSI/BHMA knob Grade 3, deadbolt Grade 3.