This combination tulip knob entry lock and deadbolt set are keyed alike to make things easy for the homeowner. The set complements both traditional and contemporary residential exterior doors. The backsets are adjustable between 2-3/8-Inch and 2-3/4-Inch. This set is made to fit doors between 1-3/8-Inch and 1-3/4-Inch. Both locks feature a dead latch style backset and a square corner striker while the deadbolt features a hardened steel anti-saw pin, a case hardened steel drive rod and hardened steel screws to enhance your security. This deadbolt requires a key to lock and unlock on both the interior and exterior sides for additional security. The US3 polished brass finish is protected by a clear powder coat finish. Utilizing a KW1 keyway ensures that you"ll always be able to get a key made. Legend locksets feature a limited lifetime warranty.