B4451 - Single mortice cylinder Application For use with locking devices accepting screw-in cylinders, state lock type when ordering to ensure that correct cam is supplied. Specification 4451 Round Threaded cylinders are also available with microswitch for use as a momentary action keyswitch. See Electric Locking section for further information. Finish • Satin Chrome (13)• Polished Brass (20) Standards BS EN 1303 : 2005 SG6 Downloads B4451 - Single mortice cylinder (.pdf, 47 kB) Close Ordering Options C819986B90213 DP CLIQ B4451 CYL M/K NO KEYS *NEW SYSTEM* (SWEDEN) C819986B91213A DP CLIQ B4451 CYL M/K NO KEYS *EXIST SYSTEM* (SWEDEN) Close 4452 - Double mortice cylinderFor use with locking devices accepting screw-in cylinders… B4457 - Rim cylinderFor use with locking devices accepting screw-in cylinders…