Kwikset 405DL 3 SMT RCAL RCS 90830-228 Delta Keyed Entry Lever Featuring Smart Key, Polished Brass For use on exterior doors where keyed entry and security is needed Featuring smart key re-key technology; re-key the lock yourself in seconds in 3 easy steps Latch includes round corner faceplate Ansi/bhma grade 3 certified Includes adjustable backset to fit all standard door preparations