Kwikset 665 Double Cylinder Adjustable Latch Deadbolt with SmartKey, Satin Chrome

Double cylinder deadbolt is for use on exterior doors where keyed entry and security is needed. Grade 3 security. Full solid core 1 In. diameter round corner dead latch. Adjustable latch with round corner strike. Featuring SmartKey Security which protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds.