British Standard 3621 Nightlatch Door Lock
The British Standard Nightlatch is a face fitted, non handed design enabling both left and right handed operation; and the striker is designed with a 3 hole fixing for additional strength and security. The lock conforms to British Standard 3621:2007 (BS EN 12209) and meets the tough criteria/requirements laid down by insurance companies and the police. Suitable for inward opening interior and exterior timber doors only, the British Standard Nightlatch is available in brass effect, satin and a range of chrome effect finishes with matching brass effect and satin external cylinders. The external cylinder features a high security integral cylinder pull, which protects the cylinder from being drilled. The cylinder has over 30.000 cut key variations and is supplied with 3 cut keys. Can be keyed to pass or master keyed to allow multiple doors to be accessed with the same key. All finishes meet the requirements of BS EN 1670:2007 Grade 3 (96 hours) for Corrosion Resistance to provide the most robust finish for your hardware.