Emtek Modern Brass Key In Leverset – Hanover Lever with Rosette Options – Single Cylinder Handing is Required for Leversets Standard door thickness of 1-3/4. Specify if thicker. Standard latch is for 2-3/8 backset. Specify 2-3/4backset if required. Weiser (WR5) Keyway Specify by adding W to the beginning of product code. No upcharge for cylinder substitution. Can be keyed into existing Weiser system Specifications:Door Thickness: 1-3/8″ to 1-3/4″Mount: Surface Mount (no door prep required)Material: BrassManufacturer Resources:EMTEK Passage & Privacy Knobsets and Leversets Dimensions/SpecificationsCF2.0 Passage & Privacy Knob/Lever Installation GuideEMTEK Passage, Privacy & Dummy Knob/Lever Installation GuideEMTEK STRETTO Sideplate Lockset Technical Specifications