Kwikset Signature Series 780 Deadbolt, Design: Traditional, Security Grade: 2, Number of Cylinders: 1, Cylinder Type: Pin, Tumbler, Keyway Type: KW1, Key Type: Keyed, Re-Key Technology: SmartKey, Strike Type: Round, Square Corner, Strike Size: 1-1/4 x 3-5/8 in, Backset Type: Adjustable, Backset Size: 2-3/8 to 2-3/4 in, Latch Type: 6-Way, Adjustable, Throw Length: 1 in, Cross Bore Diameter: 2-1/8 in, Edge Bore Diameter: 1, Projection Size: 1-1/8, 15/16 in, Door Thickness: 1-3/8 to 1-3/4 in, Interior Locking: Turn Piece, Zinc, Satin Chrome, Dimensions: 1-1/8 in L x 2-5/8 in W x 2-5/8 in H, Includes: Keys, Latch, Strikes and ScrewsDesigner style and excellent security with this Kwikset Signature Series productFor use on exterior doors where keyed entry and security is neededDeadbolt operated by key outside and thumb turn insideLatch has three interchangeable faceplates; round corner, square corner and drive-in collarLocking mechanism functions with turnpiece on the interior of the lockEasily installs in minutes with just a screwdriverMicroban antimicrobial product protection keeps door hardware 99.9% cleaner than unprotected surfaces