DIN 6915 specifies heavy hexagon nuts for structural steel bolting. These nuts are intended for use in conjunction with bolts and screws in structural steel connections. The nuts are suitable for the connection of steel construction components. The dimensions of the nuts are in accordance with DIN 6915 and the mechanical properties are in accordance with ISO 898-2. The nuts are suitable for use at temperatures from -50 °C to 150 °C. DIN 6915 heavy hexagon nuts are widely used in the construction industry due to their durability and reliability in structural steel connections.