The prevailing torque type hexagon nut with a non-metallic insert is engineered for reliable fastening applications across various industrial sectors. Constructed from hardened carbon steel, these nuts are zinc plated to provide basic indoor corrosion protection, making them suitable for environments where moisture exposure is minimal. The hexagon design allows for easy engagement with standard tools, facilitating efficient installation and removal. These nuts feature a right-hand thread in accordance with the British Standard Whitworth (BSW) specifications, ensuring compatibility with corresponding bolts and fasteners. The non-metallic insert enhances the prevailing torque characteristics, providing resistance to loosening under vibration and dynamic loads, which is critical in applications where maintaining joint integrity is essential. Designed for use in a range of applications, these nuts are ideal for mechanical assemblies, automotive components, and general engineering tasks. They meet relevant industry standards, contributing to their reliability and performance in demanding environments. The product is not standardised, and variations in dimensions may occur based on availability, but the core material and design principles remain consistent across all variations. Engineers and maintenance professionals will appreciate the ease of integration with standard nuts, washers, or inserts, ensuring versatility in assembly configurations. This product is suitable for use in various sectors, including automotive, construction, and machinery, where robust fastening solutions are required.