Single Cylinder Function: A single cylinder deadbolt is keyed on the exterior with an associated thumb turn on the inside that can quickly and easily lock or unlock the latch mechanism. Single cylinder locks are most commonly used to secure entrances to a residence or place of business. Features High quality, durable solid brass construction Suitable for right or left handed applications Manufactured in America Covered under a 5 year finish and 5 year mechanical warranty Two keys will be shipped per lock. Three or more items keyed alike will ship a total of 6 keys Specifications Backset: 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-3/4" to 2-1/4" Handing: Reversible Height: 4-1/2" Width: 2-7/8" Material: Brass Projection: 1-5/8" Cylinder: 5 Pin Schlage C