Step up to designer styles and superior security with Kwikset Signature Series products. The Key Control Deadbolt is perfect for multi-family dwellings, student housing, assisted living & rental properties. Kwikset’s Key Control Deadbolt, featuring SmartKey® Re-key Technology, is a revolutionary cost and time-saving alternative to master keying. With the first and only two-cylinder Key Control Deadbolt, either cylinder can be re-keyed in seconds, without removing the lock from the door. Retain your one-key access to all units and gain more flexible key management, all while saving time and money. This single cylinder deadbolt can be locked or unlocked by a key on the outside, or the turn piece on the inside. The Polished Brass finish adds to the traditional look and feel of the product and makes a classic statement. Bacteria can double every 20 minutes on an unprotected surface. Microban silver glass technology is incorporated during the manufacturing process and permanently binds the silver ions to the coating. Treated hardware continuously inhibits the growth of bacteria on the surface creating a cleaner product. Homeowners that install Kwikset hardware with Microban antimicrobial product protection are proactively protecting a frequently touched door surface, which helps to reduce the growth of microbes on the surface of the hardware.