4452 - Double mortice cylinder Application For use with locking devices accepting screw-in cylinders. Specification State lock type when ordering to ensure that correct cam is supplied. Finish • Satin Chrome (13)• Polished Brass (20) Standards BS EN 1303 : 2005 SG6 Downloads 4452 - Double mortice cylinder (.pdf, 73 kB) Close B4451 - Single mortice cylinderFor use with locking devices accepting screw-in cylinders… B4457 - Rim cylinderFor use with locking devices accepting screw-in cylinders…