While re-keying your door lock is not a requirement of lock installation, SmartKey allows you to quickly and easily reset your lock's cylinder to work with any KW1 Keyway key. Featuring SmartKey Security™, which protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds. Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations. Easily installs in minutes with just a screwdriver.