Product Overview

As the industry leader, Kwikset has provided trusted security for over 70 years and has become synonymous with security, peace of mind, style and innovation. The largest-selling deadbolt in America, the 660 series provides tough, effective protection at an affordable price. This single cylinder deadbolt is operated by a key on the outside or a thumb turn on the inside. The rich tones of Matte Black add the finishing touch to this product. The Matte Black finish provides a rich and warm complement to the products style.