5 Lever British Standard Deadlock
![5 Lever British Standard Deadlock](http://redsquirreltradediy.co.uk/cdn/shop/files/675953_w1_{width}x.jpg?v=1698748936)
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A high security mortice lock for use in interior and exterior doors in commercial and domestic environments. The lock has been rigorously tested to BS 3621:2007 which is a common requirement of building and contents insurance policies.