The prevailing torque type slotted round nut with a non-metallic insert, classified as type GUK, is manufactured from hardened carbon steel and features a zinc-plated yellow passivation surface treatment. This combination of materials and finishes provides good corrosion resistance under normal atmospheric conditions, making it suitable for a variety of indoor applications. The nut is designed to accommodate metric fine threads and is compatible with standard nuts, washers, and inserts, ensuring versatility in assembly and fastening tasks. Engineered for reliability, this nut exhibits a prevailing torque characteristic that enhances its locking capability, preventing loosening due to vibration or dynamic loads. The right-hand thread direction is standard, facilitating ease of installation in typical applications. This product adheres to relevant industry standards, ensuring compliance and quality assurance for professional use. Applications for this nut span across various sectors, including automotive, construction, and machinery, where secure fastening is critical. Its robust construction and effective locking mechanism make it an ideal choice for engineers and maintenance professionals seeking dependable fastening solutions. The nut's design and material properties align with the demands of industrial environments, providing a reliable option for a wide range of mechanical assemblies.