Kwikset 660 Single Cylinder Deadbolt in Polished Brass

Kwikset's Maximum Security deadbolt features a 5-pin, single-cylinder locking mechanism and a 1-inch throw with a hardened steel insert to prevent saw break-ins. This single-cylinder unit is operated by a key on the outside and turn-piece on the inside of the door for easy locking. Adjustable for 2-3/8- and 2-3/4-inch backsets, Kwikset backs this product with lifetime mechanical and 5-year finish warranties. --Brian D. Olson