Carbon Steel Hexagon Bolts with Serrated Flange
Product Overview
Hexagon Bolts with Serrated Flange are precision-engineered fasteners designed to provide enhanced locking capabilities without the need for additional washers. These bolts feature a hexagonal head for easy tightening and a serrated flange that grips the mating surface to prevent loosening due to vibrations. Typically used in high-stress environments, this bolt type finds applications in the automotive, construction, and manufacturing industries. The use of carbon steel ensures strength and reliability, while the Dacromet coating offers superior corrosion resistance, making these fasteners ideal for both indoor and outdoor use.
Technical Specification Table
| Feature | Description |
|---|---|
| Product Name | Hexagon Bolts with Serrated Flange |
| Head Type | Hex Head |
| Flange Type | Serrated |
| Material | Carbon Steel |
| Coating | Dacromet (Zinc Chromate Coating) |
| Thread Type | Metric/UNC/UNF |
| Threading | Full/Partial |
| Available Sizes | M5 – M20, 1/4-3/4 |
| Standard Compliance | DIN EN ISO 1665, ASME B18.2.1 |
Mechanical & Technical Parameters
| Parameter | Value Range |
|---|---|
| Tensile Strength | 800 – 1,200 MPa |
| Yield Strength | ≥ 640 MPa |
| Hardness | HRC 22-32 |
| Coating Thickness | 8 – 12 microns (Dacromet) |
| Salt Spray Resistance | > 720 hours |
| Operating Temperature Range | -50°C to +250°C |
Material Description & Manufacturing Process
The Hexagon Bolts with Serrated Flange are manufactured from premium-grade medium to low carbon steel. The steel undergoes a controlled forging and threading process, ensuring consistent dimensions and mechanical properties. After forming, the bolts receive heat treatment to enhance tensile strength and toughness. The final step is Dacromet coating—a zinc-chromate dispersion coating applied via dip-spin method. This coating provides excellent anti-corrosion benefits without hydrogen embrittlement, making the fasteners perfect for both structural and automotive components.
Common Industries & Applications
These high-performance flange bolts are used across various sectors due to their anti-vibration and corrosion-resistant properties. Common use cases include:
- Automotive assembly (engine mounts, chassis)
- Agricultural machinery
- Heavy-duty manufacturing equipment
- Metal fabrication assemblies
- Structural bolting in construction
- Wind and solar energy installations
Their serrated flange eliminates the need for washers and provides excellent locking performance under vibration-heavy conditions.
Product Advantages and Competitive Edge
Hexagon Bolts with Serrated Flange from Flybear Fastener stand out in the market due to several key advantages:
Superior Material:
Manufactured from high-grade carbon steel, these fasteners deliver exceptional mechanical strength and reliability under stress.
Precision Manufacturing:
Advanced cold or hot forging with CNC threading ensures tight dimensional control and flawless thread engagement, contributing to enhanced bolt longevity and torque efficiency.
Advanced Surface Finishing:
Thanks to the Dacromet coating, our bolts resist corrosion, solvents, and salts. This extends product lifespan and reduces maintenance needs, especially in outdoor or marine environments.
Customization Capacity:
We offer custom bolts per customer specifications—whether it’s material, size, thread type, or surface treatment.
Inventory & Logistics:
With extensive warehousing, we ensure timely delivery for both bulk and small-batch orders.
Post-Sales Support:
Our technical support team provides complete engineering backup to assist in installation, selection, and performance optimization.
Quality Control & Testing Measures
Quality is at the forefront of our manufacturing ethos. Every batch of Hexagon Bolts with Serrated Flange undergoes:
- Dimensional inspection via digital calipers and gauges.
- Mechanical property testing (tensile, yield, hardness).
- Salt spray tests for coating durability.
- Thread accuracy checks using GO/NO-GO gauges.
- Visual and aesthetic inspections for uniformity.
These protocols ensure 100% compliance with international standards and customer requirements.
Choosing the Right Bolts: Selection & Purchasing Guide
Selecting the right Hexagon Bolts with Serrated Flange depends on the application load, environmental conditions, required torque, and mating material. Consider the following:
- Use higher tensile grades for critical load-bearing parts.
- Choose larger diameters for structural stability.
- Consider salt-spray duration if your environment is corrosive.
- Always confirm thread compatibility to the mating part.
You can access more fastener products on our official website. For industry-specific solutions, browse our application pages.
Need pricing or help identifying the right specs? Don’t hesitate, contact us today to discuss your project requirements and obtain a custom quote.
Conclusion: Why Choose Flybear Fastener
At Flybear Fastener, we understand the importance of dependable fastening in modern engineering. Our Hexagon Bolts with Serrated Flange not only meet but exceed expectations in both performance and durability. We consistently invest in R&D and quality assurance systems to deliver products that align with evolving industry standards.
We always adhere to the principle of “Quality First, Customer-centric”, and are committed to offering clients high-performance fastener products and one-stop solutions. Browse our catalog, or contact us to explore customized fastener solutions and get a competitive quote tailored to your application needs.
Our commitment ensures you not only get a bolt—but a product optimized to hold your vision together, securely and reliably.
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