P651 - 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. 4851 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 P651 - Single mortice Cylinder (.pdf, 61 kB) Close Ordering Options 10514940013 P651 S/D WITH 2 KEYS STEP 4 10516309013 P651K KEYSWITCH M/K WITH 2 KEYS Close P652 - Double Mortice CylinderFor use with locking devices accepting screw-in cylinders P657 - Rim CylinderFor use with locking devices accepting screw-in cylinders.