The ERA Fortress mortice sashlock is Britain's most trusted security solution, meeting BS3621:2007 standards with rigorous testing. Featuring a laminated steel deadbolt that throws at least 20mm, hardened anti-drill plates, and five anti-pick levers with 1,000 key variations, it delivers robust protection against picking, drilling, and sawing. Suitable for doors up to 54mm thick and available in polished brass, satin chrome, or polished chrome, this lock can be used on either left- or right-handed doors. Supplied with two keys and a security striking box, it is CE, UKCA, and Certifire approved for fire door use but lacks an escape function.