DIN 928 is a standard set by a German organization that helps define the specifications for a type of fastener known as a hex nut. RSG Fasteners is a company that provides these kinds of products. Hex nuts are small, six-sided pieces of metal used to hold things together, like bolts or screws. They come in different sizes and materials to suit various needs. By following the DIN 928 standard, RSG Fasteners ensures that their hex nuts are reliable and fit well with other fasteners, making it easier for builders and engineers to use them in construction and other projects. This way, people can trust that the products they buy are safe and effective.