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 600 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 product’s style. For use on exterior doors where keyed entry and security is needed Featuring SmartKey Security™, which protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds SmartKey Security™ re-key technology is compatible with Kwikset (KW1) keyway Deadbolt operated by key outside and thumb turn inside Comes with 2 keys ANSI/BHMA grade 3 certified 1 inch deadbolt throw Locking mechanism functions with turn piece on the interior of the lock Easily installs in minutes with just a screwdriver Collection Name: 660 Series Color/Finish Family: Black Hardware Finish: Matte Manufacturer Color/Finish: Matte Black Series Name: Security Type: Single Cylinder Backset Size: Adjustable Bore Size: 2-1/8-in Edge Bore Size: 1-in Fits Door Thickness: 1-3/8-in to 1-3/4-in ADA Compliant: Yes Commercial/Residential: Residential For Use with Entry Door: Yes For Use with Mobile Homes: No Keyway: KW1 Material: Zinc Number of Cylinders: 1 Package Quantity: 1 Re-Key Technology: SmartKey Security Grade: Grade 3 Style: Traditional Warranty: Limited lifetime CA Residents: Prop 65 Warning(s): No UNSPSC: 31161600