Single cylinder deadbolt supplied in satin nickel finish with Nightwatch feature. Features: Four way adjustable backset: 2-3/8" or 2-3/4" backset, square, rounded corners. Antibacterial Silver Bonded Finish, Ansi Grade 3 performance, for keyed locking applications (Single Cylinder Deadbolt Function, Key Outside, T-Turn Inside). Each lock supplied with 2 keys. We can supply these keyed random, keyed alike in pairs (KA2), threes (KA3), or fours (KA4). If you need other keying options please inquire.