For heavy-duty residential and light-duty commercial doors. Includes one No.360 double cylinder deadbolt and one No.F51 Plymouth entry lockset; both deadbolt and entry are keyed alike. Deadbolt has a 7/8 in housing and 1 in throw with concealed hardened steelroller to prevent cutting or sawing. Entry lockset of solid wrought brass with pressure cast zinc tubular housing. Triple Option Universal latch fits any door, 2-3/8 in or 2-3/4 in backset, square corner, round corner, or drive-in preps. Lockset meets ANSI A156.2 Grade 2; deadbolt exceeds ANSI A156.5, 1992 Grade 2 with Grade 1 security features. SECURE KEY.