Bell Buttons, Solid Brass Bell Button, Rectangular Contemporary (Brushed Nickel Finish) @8 inch deltana heavy duty surface bolt antique brass finish dt8sbus5 6 Inch x 4 1 2 This fixture also includes 6 Inch x 4 1 2 Inch Solid Brass Olive Knuckle Hinge (Antique Nickel Finish) This hinge measures 6 inches tall by 4 1 2 inches wide and is left handed Usually Ships In 3 5 Business Days Hardware Included Yes Sold As Individually Architectural Style Residential Learn More Warranty 1 Year Limited Warranty Manufacturer Deltana Item Code: DTDSH4R5US3T 3 1 3 Inch Solid Brass Doorbell Button (Brushed Nickel Finish) mounts with two brass screws (included) and it has two lead contacts on the back Usually Ships In 3 to 5 Business Days Hardware Included Yes Sold As Individual Architectural Style Modern Warranty 5 Year Limited Warranty