The JCB 82610383 Nut Castle is an authentic OEM component designed for critical fastening applications in JCB agricultural and construction equipment. This robust castle nut features an M20 x 1.5 thread, a 30mm hex size, and a height of 20mm, ensuring a secure and reliable connection. Manufactured to JCB's high-quality standards, it is suitable for models such as the 3CX, 4CX Backhoe Loaders, 531-70 Loadall, and JS130 Excavator.