3/4″ Mortise Lock & Keeper Set Sliding Patio Door Lock for Pennco Doors (3-7/8″ Hole Spacing)

The 3/4″ Wide Mortise Lock and Keeper Set is designed for sliding patio doors, providing a secure and reliable locking solution for Pennco doors and similar systems. This replacement lock assembly ensures proper latch engagement and smooth operation for both wood and aluminum door applications.

Sold by: Each Set
Lock Body Width: 3/4″
Lock Body Depth: 1-3/16″
Mounting Holes (Top to Bottom): 3-7/8″
Keyway Orientation: 45 Degrees
Keeper Length: 3″
Keeper Width: 1/2″
Material: Aluminum (Body), Steel (Hook), Diecast (Faceplate & Keeper)
Latch Style: Hook
Application: Pennco Sliding Patio Doors (Wood or Aluminum)
Part Number: SGH-255

Constructed with a stamped aluminum inner body, diecast faceplate and keeper, and a stamped steel hook, this lock set delivers long-lasting durability and dependable performance. The hook-style latch engages securely with the included keeper, helping maintain proper door closure and security.

With a 3/4″ lock body width and a depth of 1-3/16″, this mortise lock is designed for compatibility with standard door profiles. The 3-7/8″ mounting hole spacing allows for easy replacement of existing hardware, while the 45-degree keyway orientation ensures proper alignment with compatible handle sets.

Ideal for replacing worn or damaged mortise locks, this set helps restore smooth locking function and improve overall door security.