For bedroom and bathroom doors. Rounded design to proportionally fit the palm of the hand. Both 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-pin system. 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" round corner. STRIKE: 2-1/4" full lip round corner. BOLT: 1/2" throw. HANDING: Reversible for right or left handed doors. ANSI/BHMA: A156.2 Grade 3.