Q&A

To determine the correct handing for the BEST 40H Mortise Lock, you need to consider the direction in which the door swings. Stand on the side of the door where the handle will be located. If the door swings toward you and the hinges are on the left side, it’s a left-hand door. If the hinges are on the right side, it’s a right-hand door. The lock’s handing needs to be adjusted accordingly to ensure proper operation, so make sure to configure the latch and deadbolt to match the door’s swing.

Installing the BEST 40H Mortise Lock typically requires a few essential tools, including a measuring tape, a drill, a mortising chisel, a screwdriver, and possibly a hole saw or router. You may also need a backset measuring tool to adjust the lock to the correct depth in the door. Be sure to follow the manufacturer’s installation guide for any specific tools or adjustments needed.

The backset on the BEST 40H Mortise Lock refers to the distance between the edge of the door and the center of the lock cylinder or latch. The 40H lock typically offers different backset options (e.g., 2-3/4” or 2-3/8”) to fit various door styles. To adjust the backset, you simply need to move the latch and bolt mechanism to the correct position according to the door’s measurements. Check the alignment with the strike plate once the lock is mounted to ensure smooth operation.

For a secure and properly aligned installation, begin by measuring and marking the exact location for the lock pocket in the door. Use a mortising chisel or router to create a clean, precise pocket for the mortise lock body. Once the lock is inserted, ensure it fits snugly in the pocket without any gaps. Check the alignment of the latch and deadbolt with the strike plate on the door frame to confirm proper engagement. After securing the lock in place, test its operation by turning the handle and engaging the latch and deadbolt to ensure smooth and secure locking.