Dual-Function Carbon Steel Mining Bolts 4.8 8.8 Grades Free Anchor Sections for Precise Stratum Reinforcement

Material: Carbon Steel,
Thread Size: M16-M48
Surface Finish: Self colour
Grade: 4.8、8.8

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Description

Key Attributes

Material: Carbon Steel,
Thread Size: M16-M48
Surface Finish:  Self colour
Grade: 4.8、8.8

Specification

Advantages of Tianlong Carbon Steel Mining Bolts

1. Tianlong Carbon Steel Mining Bolts :Multiple High-Strength Grades
Tianlong carbon steel mining bolts are available in 4.8 and 8.8 strength grades, offering a wide range of options to meet diverse engineering load requirements. Whether for standard support or high-stress environments, you can easily find mining fasteners that fit your project’s needs.
- Comprehensive Specifications: Thread sizes range from M16 to M48, with customizable lengths to suit different installation depths.

2. Premium Carbon Steel Material
Crafted from high-quality carbon steel—a stable and widely used material in mining—these bolts combine toughness and wear resistance. They can withstand corrosion from underground moisture and friction with rock/soil layers, ensuring long-term reliability in harsh mining environments.

3. Natural Surface Finish (Self-Colour)
The bolts retain their natural steel finish (Self colour), avoiding potential performance impacts from chemical coatings. This finish not only preserves the material’s original properties but also provides basic corrosion resistance through the steel’s inherent durability.

4. Dual-Function Zoning Design
Designed with a free section and anchor section:
- Free Section: Precisely transfers tension from the bolt head to the anchor zone, enabling prestressing to actively stabilize structures.
- Anchor Section: Bonds tightly with soil layers via cement grout, enhancing pull-out resistance by increasing frictional contact and efficiently transmitting loads to deep strata.

5. Engineering Application Advantages
- Optimized Load Distribution: The zoned structure minimizes stress concentration, reducing the risk of bolt breakage and improving the safety of the entire support system.
- Easy Maintenance & High Efficiency: Can be directly connected to engineering structures without complex surface treatments, streamlining installation and reducing maintenance needs.

6. Exceptional Cost-Effectiveness
- One-Stop Specification Matching: Covers M16-M48 thread sizes and multiple strength grades, eliminating the need for multi-supplier procurement and reducing costs.
- Balanced Performance & Cost: Carbon steel offers sufficient strength at a lower cost than stainless steel, making it ideal for large-scale underground projects.