General description
Yale's maximum security BS1 nightlatches are British Standard approved, ensuring the highest level of security for timber external doors. These locks are Kitemarked to BS 3621:2007 and are recommended by insurance companies. The BS1 nightlatches have been approved by the Police Secured by Design initiative, making them a reliable choice for enhanced security.Technical specifications
Installation
The latch automatically deadlocks when closing the door, and the snib function allows the latch to be held back for convenience during installation.Usage
The Yale lock is key operated from the outside and can be operated by both key and lever handle from the inside. The internal handle is lockable for increased security.Other information
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