Step up to designer styles and superior security with Kwikset Signature Series products. The 980 deadbolt series is both tough and attractive. This single cylinder deadbolt is operated by a key on the outside or a thumb turn on the inside. The Venetian Bronze finish is hand-rubbed to reveal unique bronze highlights and provides a rich and warm complement to the product's style. 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.