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A Bolted Type Coupler is a mechanical reinforcement bar connection system used to join two rebars using high-strength locking bolts. Unlike threaded couplers, these systems do not require threading or welding during installation.
The reinforcement bars are inserted into the coupler sleeve and secured using torque-tightened bolts to create a strong mechanical joint capable of transferring tensile loads efficiently.
These couplers are also commonly known as:
Bolted Type Couplers are widely used in:
Bolted Type Couplers are widely used to create strong and reliable reinforcement connections while improving construction speed and reducing installation complexity. Unlike traditional lap splicing methods, bolted couplers provide direct mechanical continuity between reinforcement bars without requiring welding or threading operations.
| Parameter | Specification |
|---|---|
| Product Name | Bolted Type Coupler |
| Material | High-Strength Alloy Steel |
| Rebar Diameter Range | 12mm to 40mm |
| Connection Type | Mechanical Bolted Locking |
| Surface Finish | Zinc Coated / Anti-Corrosion Coating |
| Bolt Material | High Tensile Steel |
| Installation Method | Torque Tightening |
| Strength Capacity | Equal or Greater Than Parent Rebar |
| Usage | Reinforcement Bar Joining |
| Application | RCC & Infrastructure Construction |
Bolted Type Couplers are available in multiple configurations to suit different rebar sizes, structural requirements, and application conditions.
Applications
Applications
Applications
Applications
Applications
Bolted Type Couplers are widely used across infrastructure and heavy engineering industries where strong and reliable reinforcement continuity is required.
| Application Sector | Typical Use Case | Primary Advantage |
|---|---|---|
| High-Rise Buildings | Column vertical splicing | Reduced congestion |
| Bridges | Seismic retrofitting | Easy installation |
| Metro & Tunnel Projects | Segmental construction | Better safety |
| Precast Construction | Element-to-element joining | Alignment flexibility |
| Industrial Construction | Heavy RCC structures | Structural continuity |
| Infrastructure Projects | Reinforcement joining | Faster construction |
Proper installation is critical for achieving reliable reinforcement performance and long-term structural safety.
Bolted Type Couplers undergo multiple mechanical and dimensional tests to ensure safety, tensile performance, fitment accuracy, and long-term durability in RCC and infrastructure applications.
| Test Type | Objective | Standard Reference |
|---|---|---|
| Static Tensile Test | Verifies tensile strength performance | ASTM A1034 / IS 16172 |
| Slip Test | Measures slip resistance | ISO 15835 |
| Cyclic Tensile Test | Evaluates seismic performance | ACI 318 |
| Low-Cycle Fatigue Test | Tests dynamic loading durability | ISO 15835 |
| High-Cycle Fatigue Test | Verifies long-term fatigue resistance | ASTM A1034 |
| Torque Test | Checks bolt tightening performance | Internal QC Standard |
| Go/No-Go Gauge Test | Verifies dimensional accuracy | Precision Inspection Standard |
| Dimensional Accuracy Test | Checks manufacturing tolerances | Internal QA Process |
The Go/No-Go Gauge Test is performed to verify dimensional accuracy and fitment precision of the bolted coupler system. This testing ensures proper mechanical engagement between reinforcement bars and the coupler body according to specified engineering tolerances.
Benefits of Go/No-Go Gauge Testing:
Surya Engineering is a trusted manufacturer and supplier of industrial construction products, reinforcement accessories, and engineering solutions in India. We specialize in manufacturing high-performance RCC construction products designed for infrastructure, industrial, and heavy engineering applications.
Surya Engineering supplies Bolted Type Couplers and industrial construction products across major industrial and infrastructure regions of India. Our strong logistics and distribution network ensures timely delivery and technical support for RCC and infrastructure projects across India.
12mm–40mm Rebar Diameter · High-Strength Alloy Steel · No Threading Required · IS 16172:2023 Compliant · PAN India Supply
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