Hex Head M18*57MM Track Bolts and Nuts: Reliable Solutions for Excavator Undercarriage Systems

When it comes to heavy machinery, every single component matters — especially the parts that hold your machine together under extreme pressure. Among these, track bolts and nuts play a crucial role in maintaining the stability, safety, and performance of excavators and bulldozers.

At Quanzhou Hangong Machinery Co., Ltd., we manufacture Hex Head M18*57MM Track Bolts and Nuts compatible with Track GP./DH220, EX200, PC200, EC140 and many other popular models. With our focus on precision engineering, durability, and cost-efficiency, we ensure every bolt and nut performs perfectly even in the toughest conditions.

What Are Hex Head M18*57MM Track Bolts and Nuts?

Track bolts are the key fasteners that connect the track shoes to the track chains of excavators and bulldozers. The hex head M18*57MM specification refers to a metric-sized, 18mm diameter, 57mm length bolt with a hexagonal head designed for secure fastening and easy installation.

Paired with matching nuts, these bolts ensure that the track assembly remains firmly in place, reducing the risk of loosening or wear during high-intensity operation. The M18 hex head design allows for easy torque control and consistent tightening — an essential factor for heavy-duty machinery maintenance.

Key Features of Hangong’s Track Bolts and Nuts

1. Premium Raw Materials

We use high-strength alloy steel that meets or exceeds international standards. The bolts are heat-treated and quenched to achieve excellent hardness and tensile strength, ensuring long-term performance under vibration and impact.

2. Accurate Dimensions and Perfect Fit

Each M18*57MM track bolt is machined with strict tolerance control to ensure compatibility with DH220, EX200, PC200, EC140, and Track GP. excavators. This guarantees a tight fit and stable performance, preventing track loosening or damage.

3. Corrosion and Wear Resistance

Our surface treatment technology includes black oxide, zinc plating, or phosphate coating, providing outstanding resistance against rust, moisture, and abrasion — ideal for harsh outdoor or construction environments.

4. Easy Installation and Maintenance

Thanks to the hex head design, these bolts are convenient to install, remove, and replace. Whether you’re an equipment distributor, repair workshop, or end-user, you’ll find our track bolts simple to handle and extremely reliable in daily use.

Applications of M18*57MM Track Bolts and Nuts

Our track bolts and nuts are widely used in excavators, bulldozers, and track loaders from well-known brands like Hitachi, Komatsu, Hyundai, Volvo, and Doosan.

Typical application scenarios include:

• Construction machinery track systems

• Mining and quarrying equipment

• Agricultural tracked vehicles

• Heavy machinery undercarriage maintenance

No matter the working environment — muddy, rocky, or high-temperature — our bolts hold strong, ensuring the continuous stability of your machine.

Why Choose Quanzhou Hangong Machinery?

Founded in 2018 and located in Nan’an, Quanzhou, Hangong Machinery is a technology-driven enterprise integrating R&D, production, sales, and after-sales service for construction machinery parts.

Our modern industrial park covers 20 acres with 10,000 square meters of factory area and a team of 50+ skilled workers. With a total investment of over 10 million RMB, we are equipped with advanced CNC machining centers, heat treatment lines, and quality inspection systems.

We don’t just produce bolts — we produce trust. Our goal is to deliver components that meet global standards while keeping pricing competitive for OEM and aftermarket customers.

Need customized specifications or private-label packaging? No problem — our OEM & ODM services are designed to support your business needs and strengthen your brand presence.

Let’s Talk About Quality and Partnership

We understand that in the machinery business, downtime costs money. That’s why every Hex Head M18*57MM Track Bolt and Nut we produce goes through strict quality testing before shipment.

From raw material inspection to mechanical strength testing, Hangong ensures every batch is 100% traceable and consistent. We already cooperate with clients in Southeast Asia, the Middle East, Europe, and South America, building long-term partnerships based on mutual growth.

So, if you’re searching for a reliable China manufacturer and supplier of track bolts and nuts, Hangong Machinery is your dependable choice. Let’s build something stronger — together.

Conclusion

The Hex Head M18*57MM Track Bolts and Nuts from Quanzhou Hangong Machinery combine precision engineering, strong materials, and proven performance. Whether you’re maintaining an EX200 excavator or assembling a new PC200 track system, our products deliver the stability and durability you can count on.

For inquiries, bulk orders, or OEM cooperation, feel free to contact us anytime — we’ll be happy to help you find the right fastening solution for your machines.