Sliding Patio Glass Door Locks & Latches | OEM Replacement Parts

Mortise Lock Points and Latch Configuration Selection

Sliding patio door lock assemblies function as the primary security mechanism and operational interface for glass sliding doors. Mortise locks mount inside the door frame and coordinate with strike plates and keepers on the jamb. Identifying the correct point count—1, 2, 3, or 4-point—ensures proper engagement with all latch bolts and shootbolts. Cylinder replacement and lever handle upgrades address wear, key compatibility, and operational failure without full lock replacement.

Match Your Mortise Lock Point Count

1-point locks engage a single latch bolt; 2-point adds a secondary bolt; 3 and 4-point systems include shootbolts for enhanced security. Measure frame depth and verify existing bolt positions before ordering. Cross-reference your door manufacturer and model—Andersen, Pella, Marvin, and Weather Shield use distinct mortise cavity dimensions and mounting hardware.

Cylinder Type and Keying Specifications

Patio door lock cylinders come in euro and American profiles with standard or custom keyways. Verify cam throw distance (typically 13–16mm) and cylinder length to prevent binding or insufficient bolt engagement. Common failures stem from incorrect cylinder depth or keyway profile—measure existing cylinder and confirm compatibility before replacement.

• →Andersen Gliding Door Locks
• →Sliding Glass Patio Door Handles
• →Strikes & Keepers for Sliding Patio Glass Doors

Trade Volume and Technical Support

Stock 202 SKUs covering single and multi-point configurations, cylinders, and lever sets for high-volume service calls and new construction projects. Bulk ordering available for contractors managing multiple residential accounts or commercial building retrofit programs. Technical specs include frame type compatibility, bolt throw measurements, and keying options to streamline specification and installation.