Rebar Coupler, Parallel Thread Coupler, Roll Thread Coupler Manufacturer & Supplier

Rebar Roll Thread Coupler 360 degree view and 3D model

Rebar Coupler, Parallel Thread Coupler, Roll Thread Coupler Manufacturer & Supplier video

Rebar Roll Thread Coupler

Name: Rebar Roll Thread Coupler - Mitro Industries
Uploaded: 2026-07-12T08:15:15+05:30
Description: Buy high-strength Rebar Couplers, Parallel Thread Couplers & Roll Thread Couplers made from EN8D steel. IS 16172, ISO 15835, ACI & BS compliant for 12mm-40mm TMT bars.

Buy high-strength Rebar Couplers, Parallel Thread Couplers & Roll Thread Couplers made from EN8D steel. IS 16172, ISO 15835, ACI & BS compliant for 12mm-40mm TMT bars. View Complete Details...

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₹ 21/Pcs

Construction Rebar Coupler

Product Specification

A Rebar Coupler is a high-strength mechanical connector used to join two reinforcement (TMT) bars without overlapping them. Also known as a Rebar Connector, Steel Bar Coupler, Reinforcing Bar Coupler, or Mechanical Rebar Coupler, it creates a secure and reliable connection that efficiently transfers tensile and compressive loads from one reinforcement bar to another.

Compared to conventional lap splicing, a Rebar Coupler offers superior structural performance, reduces steel consumption, minimizes reinforcement congestion, and improves construction speed. These couplers are widely used in residential, commercial, industrial, and infrastructure projects including bridges, highways, metro rail, dams, tunnels, power plants, and high-rise buildings.

Technical Datasheet

Bar Diameter (mm)	16	20	25	32	40
External Diameter (mm)	25	32	40	50	62
Coupler Length (mm)	40	50	60	80	90
Inner Diameter (mm)	14.5	18.5	23.5	30.5	38.5
Thread Pitch	M16 x 2.5 mm	M20 x 2.5 mm	M25 x 3.0 mm	M32 x 3.0 mm	M40 x 3.5 mm
Weight (Kg)	0.09	0.18	0.32	0.75	1.20

Rebar Coupler Specifications

Specification	Details
Coupler Type	Parallel Thread Coupler
Threading System	Roll Thread / Roll Tech
Material	EN8D Mild Steel
Surface Finish	Black Oxide / Galvanized
Shape	Cylindrical
Thread Type	Metric Fine Thread
Connection Type	Parallel Threaded
Installation	Mechanical Threaded Joint
Welding Required	No
Rebar Size	12mm - 40mm
Tensile Strength	650+ MPa
Corrosion Resistance	Yes
Application	RCC Construction
Packaging	Carton / Wooden Box / Gunny Bag
Packaging	Carton / Wooden Box / Gunny Bag

Parallel Thread Coupler

A Parallel Thread Coupler is one of the most widely used mechanical splicing systems for reinforcement bars. In this system, both ends of the TMT bars are processed using a Roll Thread Machine, which forms accurate parallel threads on the bar ends. The threaded bars are then connected using a precision-engineered steel coupler, providing a strong and continuous reinforcement connection.

The threaded joint works like a nut-and-bolt mechanism, ensuring maximum load transfer without weakening the reinforcement. Parallel Thread Couplers eliminate the need for long lap lengths, making them an ideal solution for heavily reinforced concrete structures.

Roll Thread Coupler

A Roll Thread Coupler is specifically designed for reinforcement bars whose ends are threaded using a Rolling Thread Machine. The bar ends are first prepared through the rib peeling and rolling process to produce precise parallel threads. The coupler is then screwed onto both threaded bar ends, creating a permanent and high-strength mechanical splice.

Roll Thread Couplers are widely used because they provide

• Full load transfer

• Excellent tensile strength

• Faster installation

• Reduced reinforcement congestion

• Better quality control

• Longer service life

These couplers are suitable for TMT bars ranging from 12 mm to 40 mm diameter.

How Roll Thread Rebar Couplers Work

The installation process is simple and reliable

1. Cut the reinforcement bar to the required length.

2. Prepare the bar end using a Roll Thread Machine.

3. Form accurate parallel threads on the TMT bar.

4. Screw the Roll Thread Coupler onto one threaded bar end.

5. Align the second threaded reinforcement bar.

6. Tighten the coupler until both bars are securely connected.

7. Inspect the joint for proper engagement before concreting.

The result is a high-strength mechanical connection capable of transferring the full design load between reinforcement bars.

Types of Parallel Thread Rebar Couplers

Standard Rebar Coupler

The standard coupler contains right-hand threads on both sides and is used where both reinforcement bars can be rotated during installation.

Features

• Standard right-hand thread

• Easy installation

• Suitable for most reinforcement applications

• Cost-effective mechanical splice

Positional Rebar Coupler

A positional coupler has one side with left-hand threads and the other side with right-hand threads. It is used where neither reinforcement bar can be rotated.

Features

• Left-hand and right-hand internal threads

• Ideal for fixed reinforcement

• Suitable for beam-column joints

• Fast installation in congested reinforcement

Reducer Rebar Coupler

Reducer couplers are used for connecting reinforcement bars of different diameters.

Features

• Different internal thread diameters

• Smooth load transfer

• Used for bar size transitions

• High structural reliability

Product Features

• Manufactured from premium EN8D steel

• High tensile mechanical splice

• Precision parallel threads

• Excellent dimensional accuracy

• Corrosion-resistant finish

• Suitable for 12 mm to 40 mm reinforcement bars

• No welding required

• No lapping required

• Easy manual installation

• High load transfer efficiency

• Reduced reinforcement congestion

• Long service life

• Excellent fatigue resistance

• Cost-effective reinforcement connection

• Suitable for heavy RCC structures

Advantages of Rebar Couplers

Using a Parallel Thread Coupler provides several advantages over traditional lap splicing.

Stronger Structural Performance

Mechanical couplers ensure direct load transfer from one reinforcement bar to another, improving structural

integrity.

Reduces Steel Consumption

Since lap lengths are eliminated, steel wastage is significantly reduced.

Faster Construction

Installation is quick and simple, reducing project completion time.

Better Quality Control

Every mechanical connection can be visually inspected before concreting.

Less Reinforcement Congestion

Couplers minimize overlapping reinforcement, making concrete placement easier.

Economical Solution

Reduced steel consumption and faster installation lower overall construction costs.

Improved Load Transfer

The threaded connection provides continuous reinforcement capable of carrying high tensile and compressive forces.

No Welding Required

Installation requires only threaded bar ends, improving site safety and reducing labor costs.

Applications of Roll Thread Couplers

Parallel Thread Couplers are widely used in

• High-rise Buildings

• Residential Projects

• Commercial Buildings

• Industrial Structures

• Bridges

• Flyovers

• Metro Rail Projects

• Highways

• Railway Infrastructure

• Dams

• Tunnels

• Power Plants

• Water Treatment Plants

• Marine Structures

• Retaining Walls

• Precast Construction

• Heavy RCC Foundations

Compliance with International Standards

Our Rebar Couplers comply with major national and international standards for mechanical reinforcement splicing.

ACI 318

Type 1

The mechanical splice must achieve at least 1.25 Fy.

Example

For Fe500 reinforcement, the minimum tensile strength should be 625 N/mm².

Type 2

The splice must satisfy 1.25 Fy and also achieve the ultimate tensile strength of the reinforcing bar.

Example

For Fe500 reinforcement, the expected tensile strength is 700 N/mm² or higher.

BS 8110 Part 1

According to BS 8110, permanent elongation after loading to 0.6 Fy should not exceed 0.1 mm.

For Grade 460 reinforcement, tensile strength should exceed 497 N/mm².

IS 1786

For Fe500 reinforcement, the specified minimum ultimate tensile strength is 545 N/mm².

Mechanical couplers designed for higher performance generally satisfy the 625 N/mm² requirement.

IS 16172

IS 16172 specifies mechanical couplers designed for Fe550 reinforcement and recommends static tensile testing for

acceptance.

Technical Specifications

Material Grade - EN8D

Manufacturing Process - Precision Machining

Threading Process - Rib Peeling & Rolling

Thread Standard - Metric Fine

Installation Method - Threaded Mechanical Joint

Bar Diameter - 12 mm to 40 mm

Tensile Strength - 650+ MPa

Corrosion Resistance - Excellent

Finish - Black Oxide / Galvanized

Parallel Rebar Roll Thread Preparation process

Step 1

90 degree Cutting on TMT Bar

Step 2

Threading on TMT Bar

Step 3

Fix the Coupler on TMT Bar

Our Roll Thread Couplers are manufactured using high-quality EN8D steel and precision machining technology to deliver exceptional performance in reinforced concrete structures. Every coupler is manufactured under strict quality control procedures to ensure accurate threading, superior strength, and reliable load transfer.

Whether your project involves high-rise buildings, bridges, highways, industrial facilities, or infrastructure developments, our mechanical rebar couplers provide a safe, durable, and economical reinforcement connection solution.

Rebar Coupler Calculator

Analyzing cost efficiency by adopting rebar couplers over TMT bar lapping in reinforcement joint construction.

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Frequently Asked Question

What is a Rebar Coupler?

A Rebar Coupler is a mechanical connector used to join two reinforcement bars without lap splicing, ensuring efficient load transfer and structural continuity.

What is a Parallel Thread Coupler?

A Parallel Thread Coupler connects two reinforcement bars with precision-machined parallel threads produced using a roll threading machine.

What is a Roll Thread Coupler?

A Roll Thread Coupler is a mechanical splice used after threading reinforcement bars through a roll threading machine using rib peeling and rolling technology.

What sizes are available?

Couplers are available for reinforcement bars ranging from 12 mm to 40 mm.

Is welding required?

No. Installation is completely mechanical and does not require welding.

Which standards do these couplers comply with?

Our couplers comply with IS 16172, IS 1786, ACI 318, BS 8110, and ISO 15835.

What are the benefits of using Rebar Couplers?

• Eliminates lap splicing
• Saves steel
• Improves construction speed
• Reduces congestion
• Enhances structural performance
• Easy quality inspection
• Long service life
• Cost-effective reinforcement solution

Construction

Oil and Gases

Rebar Roll Thread Coupler

₹ 21/Pcs

Construction Rebar Coupler

Product Specification

Technical Datasheet

Rebar Coupler Specifications

Parallel Thread Coupler

Roll Thread Coupler

How Roll Thread Rebar Couplers Work

Types of Parallel Thread Rebar Couplers

Standard Rebar Coupler

Positional Rebar Coupler

Reducer Rebar Coupler

Product Features

Advantages of Rebar Couplers

Stronger Structural Performance

Reduces Steel Consumption

Faster Construction

Better Quality Control

Less Reinforcement Congestion

Economical Solution

Improved Load Transfer

No Welding Required

Applications of Roll Thread Couplers

Compliance with International Standards

ACI 318

BS 8110 Part 1

IS 1786

IS 16172

Technical Specifications

Parallel Rebar Roll Thread Preparation process

Step 1

90 degree Cutting on TMT Bar

Step 2

Threading on TMT Bar

Step 3

Fix the Coupler on TMT Bar

Rebar Coupler Calculator

Total Saving Rs. 0

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Rebar Roll Tech Coupler

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Parallel Rebar Roll Thread Coupler

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Rebar Coupler

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