Roller shutters have many applications including doors for vans, garages, kitchens, schools, prisons and warehouses. They are also commonly used as window blinds in some European countries, such as Germany and Spain. n some municipalities, building owners may have to request a permit or are disallowed from having certain types of roller shutters on the exterior of their building. When these rolling shutter device Locks for safety then most commonly used locks in these type of shutter is called Shutter Locks.