ProSource Door Entry Lever is used for a keyed exterior door. Both levers lock or unlock by key outside or turn button inside. Consist of all-metal components. Specifications : ANSI Grade: 2, Backset Size: 2-3/4 in, Edge Bore Diameter: 1 in, Cross Bore Diameter: 2-1/8 in, Thk doorness: 1-3/8 to 1-13/16 in., Cylinder Type: 6-Pin, Keyway Type: SC1, Key Type: Keyed Different, Latch Type: Square Corner, Faceplate Size: 1-1/8 x 2-3/4 in, Strike Type: T-Style, Strike Size: 1-1/8 x 2-3/4 in, Bolt Throw Size: 12.5 mm, Stainless steel.