1.Technical Parameters
| Diameter | HRB500 Yield Load, kN | HRB500 Breaking Load, kN | Elongation | HRB600 Yield Load, kN | HRB600 Breaking Load, kN | Elongation |
| 16 mm | 98 | 140 | ≥15% | 120 | 170 | ≥15% |
| 18 mm | 125 | 178 | ≥15% | 150 | 210 | ≥15% |
| 20 mm | 157 | 220 | ≥15% | 188 | 260 | ≥15% |
| 22 mm | 190 | 265 | ≥15% | 227 | 310 | ≥15% |
| 25 mm | 245 | 340 | ≥15% | 290 | 410 | ≥15% |
2. Applications
Left hand fully threaded rebar rock bolts are commonly used for these applications:
Coal roadway support
Mining support
Underground tunnel support or reinforcement
Rock strata support or stabilization
Wire mesh support
Mining resin anchoring support
End anchoring applications and full-column anchoring applications
3. Advantages
3.1 Very High Support Strength
Made of HRB500/HRB600 steel materials providing maximum strength for underground mining applications.
3.2 Fully Threaded Design
Full thread helps increase nut movement allowing for more adjustment on-site. Can also be tightened if support loosens.
3.3 Used with Resin Anchoring Cartridges
Simply pair with resin anchoring cartridges to utilize full strength of the bolt for end anchoring or full-column anchoring.
3.4 Easy Installation
Unlike some bolt systems, this can be installed with common drilling rig equipment helping to cut costs.
3.5 Black Finish Or Hot-Dip Galvanized
Products can be supplied with a black finish or hot dipped galvanized, depending on project requirement and environmental conditions.
4，FAQ
Q: What can this bolt be used for?
A: This bolt is commonly used for coal mine roadway support, underground mining support, tunnel reinforcement, and rock stabilization.
Q: What steel materials are these bolts made of?
A: Available in HRB500 and HRB600 high strength steel.
Q: Can this be used with resin cartridges?
A: Yes! This bolt is designed to work with resin anchoring cartridges. They can provide end anchoring or full length anchoring.
Q: What sizes are available?
A: Common diameters include 16mm, 18mm, 20mm, 22mm, and 25mm.
Q: What info do you need for a quote?
A: Diameter, Length, Material, Quantity, Surface Treatment, Anchoring Method, and Destination Port.
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We deliver complete support for underground reinforcement applications, covering: Mining roof and sidewall support systems Tunnel reinforcement solutions Slope stabilization engineering support Foundation anchoring systems Underground safety structural systems From early-stage project planning to on-site application, we help customers build safer and more stable underground environments.
Wanfeng provides a fully integrated product supply system, enabling customers to source all ground support materials from one supplier: Rock bolt systems (resin / FRP / threaded) Cable bolts & anchoring systems Steel arches & I-steel support systems Wire mesh & reinforcement mesh Plates, nuts, bolts & fastening components Resin & cement anchoring materials Mining tools & consumable accessories Our one-stop supply capability reduces procurement complexity and improves project efficiency.
We ensure stable and reliable product performance through strict manufacturing and quality control systems: Standardized production processes Raw material inspection and control Mechanical performance testing Load-bearing and tensile strength verification Batch consistency inspection Final quality inspection before shipment Every product is engineered to meet demanding underground safety requirements.
We also support customized solutions for different mining and engineering projects: Customized rock bolt specifications Non-standard steel support design Special mesh and reinforcement structures Project-based product configuration OEM / private label cooperation We work closely with global partners to develop tailored solutions for complex underground environments.
With strong export experience, we provide efficient global delivery and supply chain support: International export packaging standards Container loading optimization Multi-region shipping support Fast production scheduling for urgent projects Stable long-term supply agreements We ensure reliable delivery to mining projects across different countries and regions.
We support customers throughout the entire project lifecycle: Technical documentation support Installation guidance assistance Product replacement support Long-term supply continuity Engineering consultation for project expansion Our goal is to build long-term partnerships, not just single transactions.
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