2422 - Double cylinder Application For use with locks accepting Euro profile cylinders. Specification Cylinders are supplied with fixing screw.Standard lengths are 61mm and 71mm.Extended length cylinders are also available.Decorative and security accessories are available: see Door Furniture section.The M20 high security Euro cylinder range is also available offering high resistance to snapping. Finish Standards Downloads 2422 - Double cylinder (.pdf, 52 kB) Close 2423 - Single cylinderFor use with locks accepting Euro profile cylinders. 2427 - Single cylinder with oval turnFor use with locks accepting Euro profile cylinders. 2424 - Single cylinder with small round turnFor use with locks accepting Euro profile cylinders.