🔑 Lock in your peace of mind with Kwikset! Versatile design fits standard doors from 1-3/8" to 1-3/4" thick. Elevate your home security with a Grade 3 BHMA certified deadbolt. Microban protection keeps your lock 99.9% cleaner than unprotected surfaces. Enjoy peace of mind with a lifetime mechanical and finish warranty. Install in minutes with just a screwdriver—no professional help needed! High security Microban protection Easy install The Kwikset 660 Deadbolt Lock combines traditional design with modern security features, including easy installation, Microban protection for cleanliness, and a lifetime warranty, making it the perfect choice for homeowners seeking reliable protection.