Home Secure Door Lock Centre Case - Silver - 35mm

'Non-handed' means the centre case is designed to be used on both left-hand and right-hand opening doors without any modification.

No, this centre case is specifically designed for single spindle applications. If your lock has two spindles, you will need a different type of centre case.

The backset is the measurement from the edge of the door to the centre of the spindle hole (or the centre of the door handle hole). This unit has a 35mm backset.

The PZ measurement is the distance from the centre of the spindle hole to the centre of the keyhole. This unit has a 92mm PZ.

No, a key feature of this centre case is that you can re-attach your old locking strip to it, making it a more economical repair.

You will generally need a screwdriver (often Phillips head) and possibly a flathead screwdriver or a chisel to help ease components into place. A measuring tape is essential for verifying compatibility.

The centre case is the main housing inside the door that contains the gears and springs operated by the door handles. It is the most central part of the multi-point locking mechanism.

Ensure the spindle is correctly aligned and fully inserted into the centre case. Check that the locking strip is also aligned and free from obstructions. Lightly lubricate the spindle and mechanism.

Verify that the centre case is correctly seated and screwed in place. Confirm that the locking strip is properly attached to the centre case and that there are no misalignments or obstructions in the door frame.

Double-check that your door has the specified 35mm backset and 92mm PZ measurement. Confirm that you are using a single spindle application and that the door handing matches the non-handed design.