Cylinders - keyFLEX™ UNION keyFLEX™ is the NEW patented 6 pin cylinder system ideal for a range of residential and commerical applications. Utilising the latest saw-tooth technology, this system offers good master key capability and is certified to the requirements of BS EN 1303:2015, with a patent lifetime until 2036. XM-KFES - Euro Single Cylinder For use with all standard euro profile lock cases XM-KFED - Euro Double Cylinder For use with all standard euro profile lock cases XM-KFET - Euro Key & Turn Cylinder For use with all standard euro profile lock cases XM-KFRIM - Rim Cylinder For use with all standard night latches X-KFEB - Euro Bathroom Cylinder For use with all standard euro profile bathroom lock cases X-FLEXKEY - UNION keyFLEX™ Keys2 x durable nickel plated brass keys supplied as standard… Downloads UNION keyFLEX Brochure (.pdf, 727 kB)