Left-Handed Rock Bolts ASTM 615 Grade 60 Stee Q335-Q600 Materials
Brand Name | TL |
Product Name | Left-handed Rock Bolt |
Place of Origin | Hebei China |
Diameter | 16mm.18mm.20mm.22mm.25mm,etc. |
Material | Q335,Q400,Q500,Q600 |
Length | Customized |
Thread length | Customized |
Application | Tunnel support, industrial buildings, etc |
Advantage | Quality assurance, high-quality and affordable |

Advantages of Tianlong Left-Handed Rock Bolts
1. Unique Left-Handed Design
Tianlong Left-Handed Rock Bolts feature a reverse-thread installation for specialized scenarios, enabling secure anchoring in complex geological conditions where standard right-handed bolts may fail. This design ensures reliable stability in challenging environments, such as unstable rock formations or areas requiring counter-rotation resistance.
2. ASTM-Compliant High Tensile Strength
Meeting ASTM standards, these bolts are crafted for exceptional tensile strength, making them a benchmark in mining fasteners. In high-stress environments like tunnel excavation and structural reinforcement, they effectively resist deformation, reducing maintenance costs and minimizing downtime caused by fastener failure.
3. Cost-Effective Solution for Large Projects
Combining quality assurance with affordability, Tianlong Left-Handed Rock Bolts offer an ideal balance of performance and cost. They are specifically tailored for large-scale projects, providing reliable structural support without compromising on budget efficiency.
4. Global Compatibility & Industrial Expertise
Manufactured in Hebei, China—a region with a robust heavy-industry manufacturing base and comprehensive supply chain—these bolts undergo strict quality control to meet export standards. Their international compliance allows seamless integration into mining operations worldwide, ensuring compatibility with global engineering specifications and practices.
5. Engineered for Precision and Extreme Conditions
Unlike ordinary rock bolts, TL’s left-handed design and ASTM-compliant materials make them the preferred choice for engineers prioritizing precision and durability. Built to withstand the harshest environments, they deliver unmatched performance in deep mining, tunnel support, and other high-stakes applications.















