This two-point sliding glass door mortise lock is designed to provide enhanced security and smooth locking performance for patio sliding glass doors. Commonly used on Vanguard sliding glass doors, this dual-point mortise lock includes a white strike and mounting screws for a complete replacement. The two-point locking design secures the door at both the upper and lower locking points, providing greater stability and improved security compared to standard single-point mortise locks.

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