The ERA British Standard BS3621 Nightlatch Polished Brass is based upon the ever popular ERA 183/193 nightlatch range, with the addition of an anti-tamper anti-drill cylinder cover and pull.  Robustly designed it is ideal for front door and side entrance doors.  However, although the lock is insurance company approved we would still recommend fitting a 5 lever deadlock to give added security. Other Variations The night latch is also available in the following finishes (as the cylinder and the cylinder pull are an integral part of the BS approval they are supplied in a matching fini...