SN AND ROCKS BOLTS AND ACCESSORIES
In underground construction, mining, and slope engineering, fractured rock and unstable ground can lead to serious structural risks. JB SN Bolts and Rock Bolts are engineered to provide reliable rock anchoring solutions, improve load-bearing capacity, and ensure long-term structural stability.
Designed and manufactured by Rebar Couplers India Private Limited (JB Engineering) – an ISO-certified manufacturer – these reinforcement systems are produced under strict quality control standards to meet the demands of metro rail, hydropower, tunnel, mining, and infrastructure projects.
An SN Bolt is a high-strength steel reinforcement bolt installed in pre-drilled boreholes and bonded with grout or mortar to stabilize soil or rock formations.
A Rock Bolt is a mechanical or grouted anchoring system installed in rock masses to increase cohesion, prevent displacement, and create a stable, load-bearing structure.
Stabilizes cracked and jointed rock in tunnels and mining operations.
Provides critical reinforcement in metro tunnels, shafts, and underground caverns.
Improves stability in highway and railway cutting zones prone to rockfall.
Designed to withstand dynamic stresses caused by blasting and excavation.
Enhances load transfer and long-term reinforcement in retaining structures.
Manufactured using high-grade steel to ensure superior tension and shear resistance.
Improves bonding and friction between rock layers for dependable reinforcement.
Includes plates, nuts, couplers, and drilling components for seamless installation.
Widely used in mining, tunneling, hydropower, bridges, and metro rail projects.
Available with protective options for enhanced durability in aggressive underground environments.
Tunnel support systems
Underground mining reinforcement
Slope stabilization projects
Rockfall protection systems
Retaining wall anchoring
Hydropower and dam construction
High-Rise Construction
Industrial & Heavy Civil Projects
JB Self-Drilling Anchors are available in R Thread and T Thread systems with diameter ranges from 11 mm to 111 mm and ultimate load capacity up to 14,230 kN depending on type. Engineered for high tensile strength, superior yield performance, and full compatibility with grouting systems, our anchor bars, couplers, nuts, plates, and drill bits are designed for heavy-duty ground support, tunneling, mining, slope stabilization, and infrastructure projects.
JB Engineering operates under internationally recognized quality systems to ensure reliability and performance consistency.
Our manufacturing focuses on:
- Dimensional accuracy
- Verified mechanical strength
- Controlled material traceability
- Load-bearing reliability
- Long-term durability
We supply major infrastructure, metro rail, hydropower, mining, and government engineering projects across India and international markets-reinforcing our industry credibility and execution expertise.
01. What are SN & Rock Bolts used for?
They are used for rock reinforcement, tunnel support, mining stabilization, and slope protection systems.
02. What accessories are available with the bolt system?
The system includes anchor plates, nuts, couplers, and installation hardware for complete anchoring solutions.
03. Are JB SN & Rock Bolts suitable for tunnel construction?
Yes. They are widely used in metro rail tunnels, mining shafts, hydropower projects, and infrastructure developments.
04. Can the bolt length be customized?
Yes. Bolt length and configurations can be customized as per project specifications.
05. Do JB SN & Rock Bolts meet quality standards?
Yes. They are manufactured under strict quality control processes to ensure structural reliability and long service life.