The ARNOLD GROUP – BlueFastening Systems With a foundation of many years of expertise in the production of intelligent fastening systems and very complex extruded parts, over a number of years the ARNOLD GROUP has developed into a comprehensive supplier and development partner for complex fastening systems. With our new positioning of “BlueFastening Systems” this development process will now continue under a united and harmonised structure. Engineering, fastenings, and functional parts, together with feeder processing systems, all from a single source – efficient, sustained and international.