Platte River 939231, Hardware, Locks And Latches, Cylinder Locks, Horizontal Deadbolt For Overlay Doors Easy surface mount installation. Specifications: Bore Diameter=11/16 in, Cylinder Length=13/32 in, Diameter=1-13/16 in Specifications: Finish=BRIGHT BRASS, Keying=ALIKE, Keys Included=2 Specifications: Material=CAST ZINC / STEEL, Maximum Thickness=3/4 in, Pawl Included=STRAIGHT/OFFSET Specifications: Projects=1/8 in