J922060 Original Excavator Bolt for Hitachi ZX200-3G

The part number J922060 is a genuine bolt produced by Hitachi Construction Machinery China factory. This is a special high-strength connecting bolt used for the support chain (rail link) system of tracked excavators. Therefore, it is mainly suitable for Hitachi ZX200-3G and other tracked medium-sized excavators, and is universal on the same platform models with the same support chain structure (such as ZX200-5G).

This product is a high-strength hexagonal bolt with a standard hexagonal head for easy wrench operation; The screw part is designed with full threads; The surface is treated with Dacromet (zinc chromium coating) or similar anti rust technology, presenting a yellow brown/silver gray color as shown in the picture, with excellent anti rust and corrosion resistance, and can adapt to harsh environments such as muddy water and salt alkali on the chassis. Its material is usually medium carbon alloy steel and has undergone quenching and tempering treatment to achieve the specified mechanical properties.

Inspection cycle: Every 250 working hours, a torque wrench must be used to randomly check the tightening torque of the key connecting bolts of the support chain. Timing of replacement: This bolt is a critical safety component, and once disassembled, it must be replaced with a new one in principle. If the bolt is found to be bent, threaded, worn (slipping) or severely corroded during daily inspection, it must be replaced immediately. Attention: Keep moisture-proof during storage; It is strictly prohibited to mix bolts of different strength grades. This bolt is the "safety pin" of the walking system. It is necessary to use this original genuine bolt (J922060) and have professional technicians operate it according to the specifications.