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High-Strength Segment Bolt 5P7665 & Nut 7H3608 for D8N D8R - China Suppliers & Factory for Bulldozer Parts

Hesen Industrial, a leading supplier from China, presents the high-quality D8N Segment Bolt 5P7665 and Nut 7H3608 (3/4*6designed specifically for bulldozer track sprocket assembly. Crafted from high-strength alloy steel and treated for durability, these components offer exceptional rigidity, vibration resistance, and an extended service life. Our precision-engineered products guarantee a perfect fit, ensuring stable installation of your sprockets. As a trusted factory, we supply a comprehensive range of bolts and nuts for all major excavator and bulldozer brands, committed to delivering reliable quality and consistent wholesale supply. Choose Hesen Industrial for your heavy machinery needs!

    Product Features
    • 🔩 1. OEM Standard Fit – Segment Bolt 5P7665 & Nut 7H3608 designed for D8N dozer, precise dimension ensures tight and stable sprocket segment installation.
    • 💪 2. 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.
    • 🛡️ 3. Excellent Durability – High resistance to vibration, abrasion, and impact, minimizing wear and failure in harsh working conditions to reduce downtime and maintenance costs.
    • 📦 4. Full Series Supply – Hesen Industrial provides complete bolts & nuts for all brands of excavators and bulldozers, stable stock for wholesale.
    Product Display
    Why Choose Us

    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.

    Frequently Asked Questions
    Q What is the part number for the Segment Bolt and Nut compatible with the D8N dozer?
    The Segment Bolt part number is 5P7665 and the compatible Nut part number is 7H3608. Both are designed to OEM specifications for the Caterpillar D8N dozer, ensuring a precise and secure fit for sprocket segment installation.
    Q What material is used to manufacture the Segment Bolt 5P7665?
    The Segment Bolt 5P7665 is manufactured from premium Grade 12.9 alloy steel and undergoes heat treatment to enhance tensile strength and fatigue resistance, making it highly suitable for heavy load and high-impact working environments.
    Q Are these bolts and nuts suitable for other bulldozer or excavator models?
    Hesen Industrial provides a full series of bolts and nuts compatible with a wide range of excavator and bulldozer brands. Please contact our team with your machine model and part requirements, and we will match the correct specification for your application.
    Q Does Hesen Industrial support wholesale and bulk orders?
    Yes. Hesen Industrial maintains large warehouse stocks specifically to support wholesale and bulk orders. We offer stable supply, competitive pricing, and fast delivery to meet the demands of distributors and large-scale procurement customers worldwide.
    Q How long has Hesen Industrial been in the heavy machinery parts business?
    Quanzhou Hesen Machinery Industry Co., Ltd. was founded in 1990, with over 30 years of manufacturing experience in the heavy machinery undercarriage parts industry. Our long history ensures consistent product quality and reliable after-sales support.
    Q Can Hesen Industrial provide customized segment bolts and nuts?
    Yes. In addition to standard OEM replacement parts, Hesen Industrial offers customized solutions tailored to specific dimensions, materials, or performance requirements. Our experienced engineering team is ready to assist with custom orders to suit your unique operational needs.