Heavy-Duty Splice for 25mm TMT Bars - 100% Bar-Break Strength
A durable 25mm rebar coupler designed to mechanically connect reinforcing bars, reducing lap lengths and improving structural integrity. Suitable for construction, reinforced concrete, and infrastructure projects.
The 25mm Rebar Coupler is a mechanical reinforcement bar connection designed to join two 25mm reinforcement bars end-to-end. It provides an alternative to conventional lap splicing where a mechanical rebar connection is specified by the structural design or project requirements.
For a parallel-threaded version, the prepared ends of the reinforcement bars engage with the internal threads of the coupler to create the mechanical connection. Proper bar preparation, thread engagement and tightening should follow the manufacturer's approved installation procedure.
The 25mm parallel-threaded coupler uses an internal parallel thread designed to engage with the matching external thread prepared on the reinforcement bar.
| Thread Parameter | 25mm Coupler |
|---|---|
| Thread Type | Parallel Thread |
| Thread Formation | Roll Thread / approved threading process |
| Internal Thread | 23.5 mm ID* |
| Thread Pitch | 3.0 mm* |
| Bar Connection | End-to-End |
| Thread Engagement | As per approved product specification |
Depending on your product range, mechanical rebar couplers can include:
Standard Coupler
Used for conventional end-to-end reinforcement connections where installation conditions permit the required bar movement.
Position Coupler
Useful where reinforcement bars cannot freely rotate during installation.
Reducer Coupler
Designed to connect reinforcement bars of different diameters when the specific coupler is designed and qualified for that application.
Transition Coupler
Used for specific reinforcement connection requirements according to the approved product design.
Step 1: Cut 25mm bar straight. Make parallel threads on bar end with roll-thread machine.
Step 2: Put plastic caps to protect threads.
Step 3: Screw one bar fully into coupler, then screw second bar from other side. Tighten with pipe wrench.
The 25mm size can be used in project-specific mechanical reinforcement connections for:
| Application | Typical Use |
|---|---|
| RCC Buildings | Structural reinforcement connections |
| High-Rise Buildings | Columns, beams and heavily reinforced areas |
| Columns | Vertical reinforcement connections |
| Beams | Mechanical rebar splicing |
| Foundations | Reinforcement connections in foundation elements |
| Bridges & Flyovers | Structural reinforcement connections |
| Industrial Structures | Reinforced concrete construction |
| Infrastructure Projects | Mechanical splicing where specified |
Material savings: Eliminates lap lengths, saving 50–70% steel where laps would be excessive
Faster construction: No lap splicing means quicker rebar installation
Reduced congestion: Compact design allows easier concrete placement
Full-strength connection: Achieves 125% or more of specified yield strength
Versatility: Suitable for vertical, horizontal, or inclined bar connections
Code compliance: Manufactured to meet BS, ACI, IS, ASTM, and Eurocode standards
The IS 16172:2023 framework includes performance testing such as tensile strength, disengagement testing for threaded couplers, percentage elongation, slip, cyclic tensile testing and fatigue testing.
Surya Engineering manufactures and supplies rebar coupling solutions for construction and infrastructure requirements. For a 25mm coupler enquiry, buyers can provide the required quantity, reinforcement grade, application, applicable standard and delivery location so the suitable product configuration can be confirmed.
Q1: What is a 25mm rebar coupler used for?
A 25mm rebar coupler is used to connect two 25mm diameter rebar rods end-to-end. It replaces traditional lap splicing in columns, beams, rafts, and shear walls to provide full structural strength.
Q2: How much lap length does a 25mm coupler save?
A standard lap length for 25mm rebar typically requires around 1.25 meters (50 times diameter) of steel overlap per connection. Using a 25mm coupler completely eliminates this extra lap length, saving significant steel weight.
Q3: Is thread preparation required on the 25mm rebar before fitting?
Yes, depending on the coupler type (such as parallel threaded or cold-forged threaded), the 25mm rebar ends are processed and threaded to match the internal threads of the coupler for a precise lock.
Q4: Which standards do these 25mm couplers meet?
Our 25mm rebar couplers are designed and tested in compliance with global mechanical splicing standards, including IS 16172, ACI 318, and BS 8110.
Q5: Can 25mm rebar couplers be used in high seismic zones?
Yes, high-performance mechanical splices are certified for dynamic and cyclic loading, ensuring reliable performance in seismic structural designs.
Technical Details
Where It's Used
We manufacture to order. Contact our team with your requirements and we'll provide a tailored quote.
Customer Reviews
No reviews yet — be the first to share your experience with this product.
Explore similar engineering products from Surya Engineering.
