Defender Security E 2541 Steel Door Knob Rosettes, 2-1/2 Inch, Stamped Steel, Polished Brass Plated Finish, Pack of 2 Verify dimensions against line drawing image before ordering. Stamped steel construction and Polished brass plated finish Mounts with 2 screws Used with old style passage locks 11/16 in. inside diameter, 2-1/2 in. outside diameter, 2-inch hole centers