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 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.Features For use on exterior doors where keyed entry and security is needed Deadbolt operated by key outside and thumb turn inside Includes 2 keys ANSI/BHMA grade 3 certified Latch has adjustable backset 2-3/8" to 2-3/4" to fit all standard door preparations 1 inch deadbolt throw Locking mechanism functions with turn piece on the interior of the lock Easily installs in minutes with just a screwdriver Lifetime mechanical and finish warranty Specifications Length: 1.0625" Width: 2.4375" Height: 2.4375" Weight: 1.05 lb Type: Deadbolt Application: Home Security