Carbon steel U bolts
Product Overview
Carbon steel U bolts are essential components used in clamping, mounting, and securing applications across various industries. With a distinctive U-shaped design and threaded ends, they are typically used to support pipework, attach parts to poles, or secure items to round or flat surfaces. Known for their strength, affordability, and adaptability, carbon steel U bolts are a reliable choice for heavy-duty applications where tensile strength and stability are critical.
Product Specification Table
| Specification | Details |
|---|---|
| Product Name | Carbon Steel U Bolt |
| Shape | U-Shape with threaded legs |
| Material | Carbon Steel |
| Standard | DIN 3570, ASTM A307, ASME B18.31.5 |
| Surface Finish | Zinc Plated, Hot Dip Galvanized, Black Oxide |
| Thread Type | UNC / UNF / Metric |
| Size Range | M6–M20 / 1/4″–3/4″ |
| Thread Length | Customizable |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ≥ 400 MPa |
| Hardness | HRC 20–30 |
| Thread Accuracy | Class 6g / 6H |
| Minimum Coating Thickness | 5–70 μm (depending on finish) |
| Corrosion Resistance | ≥ 72 hours in Salt Spray Test |
Material Introduction & Production Process
Our carbon steel U bolts are made from high-quality low-carbon or medium-carbon steel, typically grades like Q235, C1018, or C1045. These materials provide excellent formability and mechanical strength. The production process includes:
Raw Material Selection – Steel rods are selected for tensile strength and ductility.
Forming – Precision bending forms the U shape with CNC bending machines.
Thread Rolling – Threads are formed using cold rolling for accurate fit.
Surface Treatment – Depending on the application, bolts are plated with zinc, galvanized, or coated.
Heat Treatment (Optional) – For increased hardness or strength.
Inspection & Packaging – Each batch undergoes quality checks and secure packaging.
Typical Applications and Industries
Carbon steel U bolts are widely used in:
Pipe and Conduit Support – Plumbing, HVAC, gas pipelines
Automotive Industry – Exhaust systems, axle mounts
Construction – Mounting beams or framework to poles
Marine & Offshore – Securing cables, structures (galvanized versions)
Power & Utility Poles – Cable suspension, grounding systems
Product Advantages & Competitive Edge
Core Strengths of Carbon Steel U Bolts
Superior Material Selection – Made from durable carbon steel with excellent tensile and shear strength.
Precision Engineering – Strict tolerance control ensures secure thread engagement and consistent sizing.
Advanced Surface Finishing – Zinc plating and galvanization provide strong rust resistance and longer life cycles.
Customization Flexibility – We offer OEM and ODM services based on your drawings, samples, or specifications.
Strong Supply Chain – Ample inventory and fast delivery support urgent project timelines.
Responsive Technical Support – Experienced engineers help with product selection and usage recommendations.
Quality Control & Testing Capabilities
At Flybear Fastener, quality is embedded into every stage of production. Our inspection capabilities include:
Raw material chemical analysis
Dimensional inspection with gauges and calipers
Thread plug & ring gauge inspection
Salt spray testing for coating validation
Tensile & torque testing
Full batch traceability
We operate under ISO 9001 and IATF 16949 quality systems to guarantee consistency and performance.
Selection & Purchasing Guide
When choosing carbon steel U bolts, consider the following:
Load Requirements – Choose diameter and thread length based on expected loads
Corrosive Environments – Select hot-dip galvanized or black oxide coating for corrosion protection
Pipe Size or Beam Width – The inner width and leg length must match the mounting surface
Thread Type – Choose metric or imperial threads based on your existing hardware
For bulk or customized requirements, feel free to contact us for consultation.
Conclusion & Company Promotion
We always adhere to the philosophy of “quality first, customer foremost,” committed to delivering high-performance fastener products and one-stop solutions. Whether you’re sourcing for industrial, construction, or automotive needs, our extensive product line and technical expertise are here to serve your projects.
Explore more fastener solutions, or contact us now for a quote tailored to your needs.
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