IDHBA idh by St. Simons 28500-026 Premium Quality Solid Brass Mortise Door Bolt, Polished Chrome Premium quality solid brass Body length: 2-1/2-inch, diameter: 9/16-inch, projection: 7/8-Inch Backset: 1-3/4-inch, throw: 1/2-inch, weight: 3.5 oz Strike: 1-3/4-inch x 7/8-Inch, screw: #6 x 3/4-inch Easy installation