Privacy knob locksets Security Copa clear pack round corner latch and strike finish=antique brass. Inside knob locked or unlocked by turn button, outside knob unlocked by emergency key, round cornered all steel adjustable latch fits 2-3/8 inch and 2-3/4 inch backsets, c/w snap on metal collar for drive in, round corner strike, lifetime mechanical warranty, 5 year finish warranty, clear pack. For bedroom and bathroom doors. Rounded design to proportionally fit the palm of the hand. Both knobs locked or unlocked by turn-button inside. Outside knob unlocked by emergency key. Door prep: 2-1/8 inch cross bore, 1 inch edge bore, 1 inch x 2-1/4 inch latch face. Backset: 2-3/8 inch standard and adjustable to 2-3/8 inch or 2-3/4 inch optional. Door thickness: 1-3/8 inch to 1-3/4 inch. Faceplate: 1 inch x 2-1/4 inch round corner. Strike: 2-1/4 inch full lip round corner. Bolt: 1/2 inch throw. Handing: Reversible for right or left handed doors. Ansi/bhma: Grade 3.