• These nightlatches have an increased specification to achieve BS3621 without the need to fit a separate deadlock
• Consideration should be given, as this lock gives only one secure point on the door whereas a separate deadlock gives 2
• Backset is measured from the edge of the door to the centre of the keyhole
• Recommended by insurance companies and the police
• Secured by Design accreditation
• Cannot be forced by a credit card
• Resists drilling and conforms to BS EN 1303
