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China Suppliers Factory D8N Segment Bolt 5P7665 & Nut 7H3608 for Bulldozer Track Sprocket Assembly
- OEM Standard Fit – Segment Bolt 5P7665 & Nut 7H3608 designed for D8N dozer, precise dimension ensures tight and stable sprocket segment installation.
- High-Strength Steel – Manufactured from premium grade 12.9 alloy steel with heat treatment, providing superior tensile strength, and long service life under heavy load.
- Excellent Durability – High resistance to vibration, abrasion, and impact, minimizing wear and failure in harsh working conditions to reduce downtime and maintenance costs.
- Full Series Supply – Hesen Industrial provides complete bolts & nuts for all brands of excavators and bulldozers, stable stock for wholesale.
Quanzhou Hesen Machinery Industry Co., Ltd. is more than just a manufacturer—we are a comprehensive partner integrating design, development, production, and sales. Since our founding in 1990, we have built a strong reputation across more than three decades of continuous operation. Our product range covers track rollers, carrier rollers, sprockets, idlers, track link assemblies, track shoes, bushings and pins, bucket teeth, and high-strength bolts and nuts. To support our global customers, we maintain large warehouses that enable fast delivery and reduce downtime. Whether you need standard replacement parts or customized solutions, our experienced team is ready to provide professional support. We understand the importance of reliability in heavy machinery components, and we take pride in delivering consistent quality. If you are looking for a trusted long-term supplier who can meet your diverse sourcing needs with efficiency and expertise, we warmly invite you to send us your inquiry. Let us show you what three decades of focused manufacturing can bring to your business.
The Segment Bolt 5P7665 and Nut 7H3608 are specifically designed as OEM-standard fit components for the Caterpillar D8N dozer, ensuring precise dimensional compatibility for sprocket segment installation.
These bolts and nuts are manufactured from premium grade 12.9 alloy steel with heat treatment applied, delivering superior tensile strength and extended service life even under heavy load conditions.
Yes. The bolts and nuts feature excellent resistance to vibration, abrasion, and impact, making them highly suitable for demanding working conditions such as mining, construction, and earthmoving applications.
Absolutely. Hesen Industrial provides a full series of bolts and nuts compatible with all major brands of excavators and bulldozers. Stable stock is maintained to support wholesale orders and reduce your procurement lead times.
Founded in 1990, Hesen Industrial has over three decades of manufacturing experience. Our product range includes track rollers, carrier rollers, sprockets, idlers, track link assemblies, track shoes, bushings, pins, bucket teeth, and high-strength bolts and nuts.
Yes, in addition to standard replacement parts, Hesen Industrial offers customized solutions tailored to your specific requirements. Simply send us your inquiry with your part details or drawings, and our experienced team will respond promptly with professional support.


















