DIN 6915 is a German Industrial Standard that specifies the requirements for high-strength structural nuts with large width across flats and metric coarse and fine pitch thread made of steel. DIN 6915 is a standard specification for high-strength hexagon nuts with large widths across flats. These nuts are designed to be used with high-strength bolts in heavy-duty applications where a secure and reliable fastening is required. DIN 6915 nuts are commonly used in industries such as construction, infrastructure, and machinery where high loads and stresses are present.