The prevailing torque type hexagon nut with a non-metallic insert, conforming to DIN 985 standards, is engineered for reliability in various industrial applications. Constructed from hardened carbon steel, these nuts are designed to provide robust performance under demanding conditions. The surface treatment features a zinc flake coating that is Cr(VI) free, ensuring compliance with ISO 10683 standards, which enhances corrosion resistance while maintaining environmental safety. These nuts are characterised by their right-hand thread direction and are compatible with standard metric threads, making them suitable for a wide range of fastening applications. The non-metallic insert provides additional locking capabilities, ensuring that the nut maintains its position under vibration and dynamic loads, which is critical in sectors such as automotive, construction, and machinery. With certifications including CE and adherence to ISO 10511 and NF E25-412 standards, these hexagon nuts are reliable components for engineers and maintenance professionals seeking quality fasteners. They are particularly effective in environments where vibration resistance is essential, and their compatibility with standard nuts, washers, and inserts makes them a versatile choice for various assembly requirements. This product is ideal for use in both indoor and outdoor applications, providing good corrosion resistance under normal atmospheric conditions, thus ensuring longevity and performance in diverse operational settings.