FP551 - Single 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.FP551 Round Threaded cylinders are also available with microswitch for use as a momentary action keyswitch. See Electric Locking section for further information. Finish Standards Downloads FP551 - Single mortice cylinder (.pdf, 56 kB) Close FP552 - Double mortice cylinderFor use with locking devices accepting screw-in cylinders. FP557 - Rim cylinderFor use with locking devices accepting screw-in cylinders…