Did you know an ordinary door chain can easily be bypassed from the outside using several easy methods. In fact the common door chain is fast becoming obsolete. Upgrade your door chain to a Lockwood door chain and bolt. It's the same conventional door chain which allows you to open the door enough to see who is at the door without allowing access to your home but with the additional security of a sliding bolt. Using 3 inch screws in the door frame, this is no ordinary door chain. In this Video Learn how to attach a door chain step by step instructions.
Lockwood Door chain and Lock. Assa Abloy.
Install a door chain and improve your home security.
How to Install a door chain.
Fitting a door chain
https://youtu.be/aT1IFGK4QfM
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