How to lock the anti theft door from the inside with a knob and the outside can still be played

Updated on Security door 2024-04-24
2 answers
  1. Anonymous users2024-01-23

    What you said should be the safety knob inside the handle to install it, open the two screws on the handle on the inside of the door, and then remove the handle or install a new handle, (the knob is brought on the handle,) before installing the small iron piece inside the safety button on the handle into the corresponding lock body hole, and then directly press the handle Ning Screw OK!

  2. Anonymous users2024-01-22

    The current security door is like this, which can be opened with a key

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