Kwikset Signature Deadbolt, Single-Sided, Security Grade: 2, Number of Cylinders: 1, Cylinder Type: 5-Pin, Keyway Type: KW1, Key Type: Different, Re-Key Technology: SmartKey, Strike Type: Round Corner, Strike Size: 2-1/4 in H x 1 in W, Backset Type: Adjustable, Backset Size: 2-3/8 to 2-3/4 in, Latch Type: Round Corner, Throw Length: 1 in, Cross Bore Diameter: 2-1/8 in, Projection Size: 1.156 in, Door Thickness: 1-3/8 to 1-3/4 in, Interior Locking: Turnpiece, Door Handing: Universal, Commercial/Residential: Residential, Metal, Polished Brass, Dimensions: 2.6 in H x 2.6 in W x 1.125 in D, Includes: (2) KeysDesigner style and superior security with this Kwikset Signature Series productDeadbolt latch has round corner faceplateLatch has adjustable backset 2-3/8 to 2-3/4 in to fit all standard door preparationsSmartKey Security, which protects against advanced break-in techniques and allows you to re-key your lock yourself in secondsEasily installs in minutes with just a screwdriverLocking mechanism functions with turn piece on the interior of the lockMicroban antimicrobial product protection keeps door hardware 99.9% cleaner than unprotected surfacesDeadbolt operated by key outside and thumb turn inside