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High-Tensile Excavator Dozer Grader Bolt and Nut Parts from China Suppliers - Reliable Factory Manufacturing
Overview
This high-tensile Tooth Block Screw (also known as an Adapter Bolt or Segment Bolt) is a critical fastening component designed for heavy-duty earthmoving machinery. It is engineered to securely attach cutting edges, blade segments, and adapter tips to excavator buckets and bulldozer blades. Manufactured to meet rigorous industry standards, this bolt ensures maximum stability and safety in extreme operating conditions.
Key Features
- ⚙️ Superior Material Strength Forged from high-quality 40Cr Alloy Steel, offering excellent toughness and durability.
- 🔩 High Hardness Grade Heat-treated to achieve Grade 12.9 tensile strength, providing exceptional resistance to stretching and deformation.
- 📐 Precision Design Features a specialized head profile (Round/Flat Head with drive slots) designed to sit flush against the blade or adapter, minimizing wear and preventing loosening under high vibration.
- 🛡️ Anti-Corrosion Finish Treated with a protective coating (black oxide or similar) to resist rust and corrosion in harsh environments.
- 🔧 Easy Installation Designed for quick assembly and disassembly, reducing machinery downtime during maintenance.
Technical Specifications
| Product Name | Tooth Block Screw / Adapter Bolt |
| Material | 40Cr Alloy Steel |
| Hardness Grade | 12.9 (High Tensile) |
| Head Type | Round/Flat Head with Drive Slots (as per image) |
| Thread Type | Metric Coarse Thread (Standard for construction machinery) |
| Surface Treatment | Black Oxide / Phosphating / Painted (Customizable) |
| OEM Number Reference | Compatible with standard series (e.g., 114 series, specific numbers depend on exact sizing) |
Applications
Widely used in the undercarriage and ground engaging tools of various construction machinery, including:
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Excavators Securing bucket adapters and side cutters.
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Bulldozers Fixing cutting edges and end bits.
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Motor Graders Attaching blade segments.
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Loaders Bucket tooth systems.
Frequently Asked Questions
Q
What is a Tooth Block Screw (Adapter Bolt) used for?
A Tooth Block Screw, also called an Adapter Bolt or Segment Bolt, is used to securely fasten cutting edges, blade segments, and adapter tips to excavator buckets and bulldozer blades. It is a critical component in heavy-duty earthmoving and construction machinery.
Q
What material is this Tooth Block Screw made from?
It is forged from high-quality 40Cr Alloy Steel, which provides excellent toughness, hardness, and long-term durability under extreme working conditions.
Q
What hardness grade does this bolt achieve?
After heat treatment, this bolt achieves Grade 12.9 tensile strength — the highest standard grade for bolts — offering exceptional resistance to stretching and deformation under heavy loads.
Q
Is the surface treatment customizable?
Yes. The bolt is available with different surface treatments including Black Oxide, Phosphating, and Painted finishes. Custom surface treatment options can be arranged based on specific application requirements.
Q
Which machines are compatible with this Adapter Bolt?
This bolt is widely compatible with various heavy-duty construction machines, including excavators, bulldozers, motor graders, and wheel loaders. It is compatible with standard OEM series such as the 114 series, with exact sizing depending on the specific application.
Q
How do I get a quote or request more technical details?
You can contact us directly through our website's contact form or reach out via email. Our technical team is ready to assist with specifications, OEM cross-references, custom requirements, and bulk pricing inquiries.