Cylinder locks are common pin-tumbler, barrel, or profile cylinder locks that enable easy removal to change ou the lock without changing the actual lock case in the door. Available with thumb turns on the internal side, cylinder locks are also able to utilise a keyed alike system, where a single key opens multiple locks. Useful for both commercial and residential use, Euro cylinder locks are a very popular choice of lock. With double cylinders for keyed entry on both sides and single cylinders for keyed entry from a single side only, there are lots of options to be had with Euro cylinder locks. See all door locks and latches here for more.