The anti theft door anti lock key is difficult to screw, and it is very difficult to screw

Updated on Security door 2024-08-02
3 answers
  1. Anonymous users2024-01-24

    There are two screws on the handle behind the door, and add some oil (except cooking oil) to the handle to remove the safety bolt or clean up the rust stains.

    It takes a bit of patience to remove the hand and put it back in, and the upper and lower screws are not easy to align with the holes.

  2. Anonymous users2024-01-23

    Apply a pencil to the lock point.

  3. Anonymous users2024-01-22

    Dear, I suggest you try it with some oil.

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If it is the original key, then you can blow a little pencil lead ash into it to estimate that the problem can be solved. It's about cutting the pencil lead into powder.