For heavy-duty residential and light-duty commercial doors. Includes one No.360 single cylinder deadbolt and one No.F51 Bell entry lockset, both deadbolt and entry are keyed alike. Deadbolt has a 7/8 inch housing and 1 inch throw with concealed hardened steel roller 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 inch or 2-3/4 inch 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.