What is the name of the piece that locks the inside of the security door?

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

    General name: safety bolt anti-lock button + deadbolt.

  2. Anonymous users2024-01-23

    The knob that can be locked indoors is called: internal insurance.

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If you are not a professional, do not open it yourself, otherwise you may lose the parts and cause the whole lock to be unusable.