Kwikset 660 Single Cylinder Deadbolts Featuring SmartKey in Satin Nickel

As the industry leader, Kwikset has provided trusted security for over 60 years and has become synonymous with security, peace of mind, style and innovation. The largest-selling deadbolt in America, the 600 series provides tough, effective protection at an affordable price. This single cylinder deadbolt can be locked or unlocked by a key on the outside, or the turn piece on the inside. The crisp, clean appearance of the satin nickel finish adds to the overall look of the product and brings a modern feel.