DIN 936 specifies the dimensions and technical requirements for metric hexagon slotted and castle nuts. These nuts are designed for use in conjunction with bolts, studs, and other externally threaded components in various mechanical and structural applications. The standard outlines the materials, mechanical properties, and dimensions of these nuts, ensuring that they meet the necessary standards for safety and performance. DIN 936 provides engineers, manufacturers, and users with a reliable framework for selecting and specifying these nuts, helping to ensure the integrity and reliability of assembled components and structures.