Restore security and proper operation to your sliding patio door with this multi-point mortise latch and keeper assembly designed for compatible wood and vinyl sliding door systems. Engineered to provide enhanced security over traditional single-point locking mechanisms, this multi-point lock engages at multiple locations along the door frame to help improve door stability and resistance to forced entry. It is an excellent replacement for worn, damaged, or malfunctioning patio door lock hardware.

Constructed from durable yellow zinc plated steel, this lock is built to withstand years of daily use while maintaining dependable performance. The mortise lock features a forty-five degree keyway design and includes a heavy-duty keeper for secure engagement. With mounting holes spaced twelve inches on center, a one and nine sixteenths inch backset, and a five and five eighths inch hook spacing, this assembly is designed to fit a variety of compatible sliding patio door applications.

For added convenience, each hook latch can be adjusted independently using the integrated adjustment screws located on the face of the lock. This allows precise alignment and helps ensure smooth locking performance as doors settle over time. The included keeper measures seven sixteenths inch deep by five eighths inch wide and is supplied with three inch security screws to provide enhanced attachment strength. Whether replacing existing hardware or restoring a sliding patio door to proper working condition, this multi-point mortise latch and keeper assembly delivers improved security, adjustable performance, and long-lasting durability.

Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.