Polished Brass British Standard Sashlock is designed to be economical without compromising on quality and is ideal for use on external doors. It has a steel case fitted with an integral anti-drill plate, a brass sashbolt and deadbolt with 2 hardened steel inserts, has 1,000 differs and comes supplied complete with 2 genuine plated steel keys. It is also BS3621:2007 compliant meaning that it is insurance and police approved and has a 30 minute fire rating (EN12209) assuming that it is fitted with the correct intumescent strips.