-
-
-
-
Threaded Steel Rock Bolts – Roof Anchoring for Mining and Tunnels
-
Tungsten Carbide Mining Cutting Picks - C31HD C30 B47K Series
-
High-Efficiency Rock Drilling Bit - Carbide Superior Alloy Steel Finish
-
Hollow Anchor Bolts for Rock Soil Stabilization Full-System Solutions with Plate Nut
-
Left-Handed Rock Bolts ASTM 615 Grade 60 Stee Q335-Q600 Materials
-
High-Quality B19 Drill Pipe for Coal Mining - M14*1.5 Thread, 16x6 Square Teeth
-
-
-
Torque Nuts M16-M24, Plain Black Finishes for Precise Fastening in Machinery & Construction
-
Mushroom Head Coal Mine Hex Nuts 4 Surface Finishes for Underground Safety
-
DIN 74361 Forged Dome Rock Nuts - Premium Coal Mining Nuts for Harsh Environments
-
High-Strength Forged Nuts - S45C Steel, HRC 28-32 | Custom for Mining Support Systems
-
Premium Carbon Steel Dome Mine Nuts - Sizes M16 - M50 for Coal Mine Safety
-
-
Auto parts and Hardlock lock nuts
-
Railway fittings and Building fittings
-
-
-
-
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
Still deciding? Get samples first, Contact US !
View similar products
- Description
-
Key Attributes
Material: Carbon Steel,
Thread Size: M16-M48
Surface Finish: Self colour
Grade: 4.8、8.8Specification
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.
Company Video
Certificate
Factory photo
Exhibition Collection
Package
FAQ
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
Still deciding? Get samples first, Contact US !
Products Category
Inquire Now
Note: Please leave your email address, our professionals will contact you as soon as possible!

Hebei Tianlong Fastener Co., Ltd
Contact: Sophia
Tel: +86 18630088852
Tel: +86 15132010868
E-mail: [email protected]
E-mail: [email protected]
Add: Tianlong Company, Yongnian District, Handan, Hebei, China
-
Railway fittings and Building fittings
-
-
-
Threaded Steel Rock Bolts – Roof Anchoring for Mining and Tunnels
-
Tungsten Carbide Mining Cutting Picks - C31HD C30 B47K Series
-
High-Efficiency Rock Drilling Bit - Carbide Superior Alloy Steel Finish
-
Hollow Anchor Bolts for Rock Soil Stabilization Full-System Solutions with Plate Nut
-
Left-Handed Rock Bolts ASTM 615 Grade 60 Stee Q335-Q600 Materials
-
High-Quality B19 Drill Pipe for Coal Mining - M14*1.5 Thread, 16x6 Square Teeth
-
-
-
Torque Nuts M16-M24, Plain Black Finishes for Precise Fastening in Machinery & Construction
-
Mushroom Head Coal Mine Hex Nuts 4 Surface Finishes for Underground Safety
-
DIN 74361 Forged Dome Rock Nuts - Premium Coal Mining Nuts for Harsh Environments
-
High-Strength Forged Nuts - S45C Steel, HRC 28-32 | Custom for Mining Support Systems
-
Premium Carbon Steel Dome Mine Nuts - Sizes M16 - M50 for Coal Mine Safety
-
Request Quote