For residential single and multi-family doors. Unlocked or locked by keyed lever outside or turnbutton lever inside; inside lever always unlocked. Zinc based and plated, solid lever designing. Pressure cast zinc tubular lock housing. Key removable outside lever for easy cylinder replacement. 3 piece assembly. DOOR PREP: 2-1/8" crossbore; 7/8" or 1" edge bore; 1" x 2-1/4" latch face. DOOR THICKNESS: 1-3/8" to 1-3/4". CYLINDER: 5-pin tumbler C keyway with nickel silver pins and keys (2). FACEPLATE: 1" x 2-1/4". STRIKES: 1-5/8" x 2-1/4", full 1-1/8" lip. BOLT: 7/8" housing and 1" throw. ANSI/BHMA: Meets 400,000 cycle ANSI A 156.2 Grade 2 requirements. ADA compliant. TRIPLE OPTION UNIVERSAL: Fits all doors; 2-3/4" or 2-3/8" backset; square corner, round corner, or drive-in preps.