IDEAL USE: Deadbolt thrown or retracted by key from outside or by inside turn unit; perfect for use on entry doors with 2 bore holes as additional layer of security; includes lockset and 2 keys ADVANCED SECURITY FEATURES: Ideal for front doors and exterior entrances where security and style are needed; includes industry-leading 1-inch deadbolt with hardened steel spinning pin, anti-drill plates and anti-pick pins to help protect against attacks CERTIFIED HIGHEST SECURITY: Premium metal construction and quality craftsmanship for everyday strength and peace of mind; Grade 1/AAA certified BHMA rating for Security, Durability and Finish EASY INSTALLATION: Self-aligning screw holes make installation hassle-free; everything included to upgrade existing double bore hole doors, such as exterior doors with keyed security, yourself with only a screwdriver; fits right and left handed doors HASSLE-FREE FIT: Universal latch slides easily into place without tools to fit standard doors with 2-3/8" or 2-3/4" backset; fits door thickness 1-3/8" to 1-7/8"; includes integrated strike reinforcer with 3" screws to help protect against kick-in attacks TRUSTED WARRANTY: Schlage locks are backed by a limited lifetime mechanical and finish warranty, and a 3-year electronics warranty; see Schlage warranty for full details