ASEC Kite's BS auto deadlocking nightlatch delivers robust security for wooden doors through its automatic deadbolting mechanism, which engages upon closure to prevent forced entry via card manipulation. Compliant with BS 3621:2004 (BS EN 12209), this rim-fixed latch features a high-security cylinder with over 30,000 key differs and an integral pull guard against drilling attacks. The snib function allows you to hold the bolt withdrawn for temporary access convenience. Supplied complete with fixings and keep, it suits both solid and glass-panelled inward-opening doors where enhanced perimeter security is essential.