The prevailing torque type hexagon nut with a plastic insert is engineered for reliable fastening in various industrial applications. Constructed from hardened carbon steel, these nuts feature a zinc-plated surface treatment that provides basic indoor corrosion protection, making them suitable for use in environments where exposure to moisture is limited. The nuts comply with DIN 6924 and ISO 7040 standards, ensuring consistency and compatibility with standard metric threads. Designed with a hexagon drive, these nuts facilitate easy installation and removal using standard tools, while the right-hand thread direction aligns with common fastening practices. Each nut incorporates a heat-stabilised polyamide insert that withstands temperatures ranging from 150 °C to 180 °C, enhancing the locking mechanism and preventing loosening under vibration or dynamic loads. These nuts are particularly effective in applications where a secure fit is critical, such as in automotive, machinery, and structural assemblies. Their robust design and adherence to industry standards make them a dependable choice for engineers and maintenance professionals seeking reliable fastening solutions. Additionally, they are compatible with standard nuts, washers, and inserts, allowing for versatile use across various projects. The product is also CE certified, affirming its compliance with European safety and performance regulations.