Commercial Door Deadbolt Lock, Aluminum, Laminated Swing Hook LockThis mortise deadlock is constructed from steel and comes finished in aluminum. It features 1 1 8 in. backset and a swing hook lock for commercial use. It works great for sliding store front doors. Steel Housing Pivoting Laminated Hook Steel Bolt Used on Commercial Pivoting Aluminum and Steel Doors Fasteners included Faceplate included (bronze finish) Cylinder optional (see Prime Line part J 4514) 1 1 8 in. cylinder backset For further dimensional