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Chain Lock

A list of these Chain Lock articles makes it easy for you to quickly access relevant information. We have prepared the following professional Chain Lock, hoping to help solve your questions and better understand the product information you care about.
  • What are the chains and guards on doors for?
    Modern door chain locks add security in a similar way to a bolt. However, they allow a door to be opened to approximately 150 mm and still keep it securely fastened. The occupant can check a caller’s identity before fully opening the door.A ‘door guard’ provides very good security and is more robust
    2022-08-04
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