The JCB 400H9116 is a genuine OEM M24x1.5 locking nut, designed for secure and reliable fastening in a wide range of JCB construction and agricultural equipment. This essential component ensures critical connections remain tight under operational stress, preventing loosening due to vibration. It is manufactured to JCB's exacting standards for durability and performance, suitable for models including Backhoe Loaders (3CX, 4CX, 5CX), Loadalls, Wheeled Loaders, Fastrac tractors, and various excavators.