Hager AB800 4X4 US3

<p><b>Full Mortise Concealed Anti-Friction Bearing Hinge, Standard Weight, 4" x 4", Brass, 3 Knuckle, Bright Brass</b></p><p>Three knuckle ball bearing standard weight hinge. For use with medium weight doors or doors requiring medium frequency service</p><p>There are three dimensions to know in order to determine the minimum width of the hinge: door thickness, backset, and clearance required.</p><p><p>Today, the Hager name is synonymous with architectural hinges. In fact, they are the industry's premiere designer and manufacturer of architectural hinges, with a product line that offers one of the widest varieties of sizes, shapes, and finishes--all of which meet or exceed ANSI standards. </p>