Emtek 6442 STRETTO Narrow Trim Lockset, 2" x 10-1/2" Tuscany Keyed, Brass Tubular, Single Cylinder Can be ordered with any Brass Knob or Lever Sold as complete set. Includes Latch and Strike Plate Narrow 1-1/4" Door Preps, 3-3/8" C-to-C Hole Spacing Supplied with 28 Degree Latch Standard backset is 2-3/8" backset. Specify 2-3/4" backset if required. Handing required for Leversets Specifications:Backset: Adjustable 2-3/8" or 2-3/4"Height: 10"Width: 2"Door Thickness: 1-1/4" to 3"Bore Hole: 1-1/4"Plate Thickness: 3/4"