Single Cylinder Keyed Entry: Single cylinder handlesets are keyed on the exterior with an associated thumbturn on the inside that unlocks the door. The exterior handle has a thumb plate and the interior handle features a lever or knob. Single cylinder locks are most commonly used to secure entrances to a residence or place of business. Features: Tested to exceed ANSI/BHMA Grade 2 security requirements Constructed of solid brass for durability and dependability Installs easily with all necessary mounting hardware included Covered by Baldwin's Two keys will be per lock. Three or more items keyed alike will ship a total of 6 keys Specifications: Backset: Adjustable 2-3/8" or 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Mounting Center to Center: 5-1/2" Grip Center to Center: 8-3/8" Door Thickness: 1-3/4" to 2" Handing: Reversible Left or Right Cylinder: 5 Pin C Latch Faceplate: Round Corner or Square Corner Overall Height: 12-1/2" Handle Projection: 2-3/8" Trim Height: 12-1/2" Trim Width: 2-11/16" Interior Handle Height: 2-1/4" Interior Handle Width: 2-1/4" Interior Handle Projection: 2-1/8" Interior Trim Height: 5" Interior Trim Width: 2-9/16"