Kwikset 660 Single Cylinder Deadbolt Keyed One Side - featuring SmartKey

Function: Keyed One Side Features For use on exterior doors where keyed entry and security is needed Featuring SmartKey Security™, which protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds. SmartKey Security™ re-key technology is compatible with Kwikset (KW1) keyway or (SC1) keyway options Deadbolt operated by key outside and thumb turn inside Comes with 2 keys Deadbolt Latch has round corner faceplate - round corner and square corner ANSI/BHMA grade 3 certified Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations 1 inch deadbolt throw Locking mechanism functions with turn piece on the interior of the lock Easily installs in minutes with just a screwdriver Lifetime mechanical and finish warranty Microban Antimicrobial product protection keeps door hardware 99.9% cleaner than unprotected surfaces