J932713 Original ZX450-3 excavator bolt

The part number J932713 is an original high-strength bolt specifically designed for the Hitachi ZX450-3 large hydraulic excavator. According to the data, this bolt may be mainly used for connecting and fastening the main frame, the root reinforcement of the boom, the chain plate, or key structural components. It may have universality on models of the same series (such as ZX450LC-3, ZX500-3, etc.) that adopt the same structural design and connection standards.

This product is a high-strength hexagonal head bolt manufactured by Hitachi. The surface of the bolt is usually treated with galvanized passivation or Dacromet, which has excellent rust and corrosion resistance. Its thread accuracy is high (usually 6g level), and when combined with original nuts or threaded holes, it can achieve reliable anti loosening effect, ensuring the stability and safety of key structural connections under long-term harsh working conditions.

Regular inspection and maintenance: Every 100 working hours or weekly, visual and tapping inspections should be conducted on the bolts in critical areas to check for looseness, rust, cracks, or plastic deformation. It is recommended to use a torque wrench to recheck the torque of important connection points every 500 working hours or every month. Timing of replacement: Once the bolt is found to have thread damage, worn head edges that cannot apply force, obvious bending, cracks, or elongation due to stretching, it must be replaced immediately.