This sliding patio door mortise lock is constructed with an aluminum faceplate with a diecast body and dual steel hooks. It features a round end face plate with adjustable hook projection and a 1/4 in. square drive. This type of patio mortise lock is used by many patio door manufacturers.

This sliding patio door mortise lock is constructed with an aluminum faceplate with a diecast body and dual steel hooks. It features a round end face plate with adjustable hook projection and a 1/4 in. square drive. This type of patio mortise lock is used by many patio door manufacturers.