How to install door lock screws

1. Drill the lock body mounting hole according to the lock body mounting size.

2. Install the lock body to the hole position in turn, align the rear fixing screws, and install the screws and connecting screws to the outer panel part.

3. Insert the interlocking square bar into the square bar hole of the lock body, align the square hole of the outer panel part with the interlocking square bar hole, and install the outer panel part.

4. After opening the hole, try whether it is suitable for the actual door lock, especially whether there is a small groove in the oblique tongue part.