The Case IH 87456287 is an authentic OEM lock nut designed for critical fastening applications in various Case IH, New Holland, and Steyr agricultural and construction equipment. This self-locking nut features an M12 x 1.75 thread and a 19 mm hex size, providing enhanced security against loosening due to vibration and operational stress. Manufactured to precise specifications, it ensures reliable performance and safety, maintaining the integrity of your machinery's assemblies. This genuine part guarantees a perfect fit and long-lasting durability.