Kwikset Deadbolt, Design: Contemporary, Security Grade: 2, Number of Cylinders: 2, Keyway Type: KW1, Key Type: Keyed, Re-Key Technology: SmartKey, Backset Type: Adjustable, Backset Size: 2-3/8 to 2-3/4 in, Latch Type: Adjustable, Round Corner, Throw Length: 1 in, Cross Bore Diameter: 2-1/8 in, Edge Bore Diameter: 1 in, Door Thickness: 1-3/4 in, Interior Locking: Turn Piece, Commercial/Residential: Commercial, Residential, Zinc, Satin Chrome, Dimensions: 1-9/32 in L x 2-13/16 in W x 3 in H, Includes: (2) Keys, Round Deadbolt Strike, Latch, Screws and SmartKey ToolFor use on exterior doors where keyed entry and security is neededFeaturing SmartKey Security, which protects against advanced break-in techniques and allows you to re-key your lock yourself in secondsSmartKey Security re-key technology is compatible with Kwikset (KW1) keyway or (SC1) keyway optionsDeadbolt operated by key outside and thumb turn insideDeadbolt latch has round corner faceplateLatch has adjustable backset 2-3/8 to 2-3/4 in to fit all standard door preparationsLocking mechanism functions with turnpiece on the interior of the lockEasily installs in minutes with just a screwdriver