Designed to provide reliable service in commercial environments such as multi-family and light commercial projects where basic needs or specific codes are required. Unlocked or locked by keyed lever outside. Emergency exit feature, no unlocking required for panic exit, inside knob always unlocked. All locksets have the same finish for both interior and exterior parts. 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"t-strike, full 1-1/8" lip. BOLT: 7/8" housing and 1" throw. ANSI/BHMA: A 156.2 Grade 2 requirements.