For bedroom and bathroom doors. Both Colonial style knobs locked or unlocked by turnbutton inside. Outside knob unlocked by emergency key. Security knobs feature full 1" solid core throwbolt, all metal mechanisms, anti-pry shield and pick resistant 5-pinsystem. DOOR PREP: 2-1/8" Cross Bore, 1" Edge Bore, 1" x 2-1/4" Latch Face. BACKSET: 2-3/8" standard and adjustable to 2-3/8" or 2-3/4" optional. DOOR THICKNESS: 1-3/8" to 1-3/4". CYLINDER: 5-pin. FACEPLATE: 1" x 2-1/4". STRIKE: 2-1/4" full lip. BOLT: 1/2" throw. HANDING: Reversible for right or left hand doors. ANSI/BHMA: A156.2 Grade 3.