When installing the door control switch, all four mounting holes were not snapped into the nut, and the impact force of the pneumatic tool was strong, resulting in deformation of the nut seat.
When the door control switch is installed, all four mounting holes are stuck into the nut, the pneumatic tool has a strong impact force, resulting in deformation of the nut seat.
When installing the door control switch, the four mounting holes were not all clamped into the nuts. The pneumatic tools had strong impact, resulting in deformation of the nut seat.