The CONU counter nut was developed by Malte Fürstenberg, Fürstenberg Fittings in Hamburg, and the patent applied for has meanwhile been granted. The next step was for him to find a partner with a high level of technical expertise and the ability and interest to support the path to a market launch.

This partner was found in REYHER. Based in Hamburg, REYHER is one of the leading trading companies for fasteners and fixing technology in Europe.

Another partner is the NORD-LOCK GROUP. NORD-LOCK is a market leader in the field of securing bolted joints and has many years of technical experience.

The fourth partner in the alliance, is the manufacturing company HEWI G. Winker, from Spaichingen in Baden-Württemberg, Germany. A well-established automotive supplier and manufacturer of lock nuts and formed parts. HEWI is known for its comprehensive know-how in the production of technically sophisticated fasteners. This company has been entrusted with the manufacture of CONU.

Thanks to the partnership-based cooperation, and paired with the combined expertise of these four specialised companies, it has been possible to launch the CONU fastening solution, with its significant advantages, into a wide range of industrial sectors.

The CONU counter nut offers numerous advantages in use – and now also impresses officially with its well-thought-out design. As the exclusive distribution partner, REYHER congratulates Malte Fürstenberg, the inventor of CONU, on winning the iF Design Award in the product design category.

Thanks to its special shape, the CONU counter nut disappears completely into the countersink and fits flat into any surface. This significantly reduces flow resistance and the risk of injury from protruding parts. Thanks to its special structure, the nut also has a self-locking effect that prevents it from loosening even under dynamic loads without the need for additional safety fasteners. Furthermore, CONU can be used in almost all materials. No wonder it impressed the jury of the iF Design Award!