Threaded Rebar

Introduction:

Threaded Rebar, also referred to as mechanical threading rebar, threaded steel bar, or coupling-ready rebar, is a deformed steel bar with machined threads at one or both ends for use with mechanical couplers. These threads allow for high-strength, full-tension connections between rebars, replacing traditional lap splices. Commonly used in high-rise buildings, bridges, nuclear power plants, and seismic zones, threaded rebars improve construction efficiency and load continuity. Yoshine manufactures threaded rebars from HRB400 and HRB500 deformed bars in compliance with GB1499.2, BS4449, and ASTM A615. Thread profiles and thread lengths are customizable based on coupler specifications and project needs.

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Product Details

Bar Diameter (mm)	Thread Type	Thread Length (mm)	Steel Grade
16	Metric / UNC / Custom	50–80	HRB400 / HRB500
20	Metric / UNC / Custom	60–100	HRB400 / HRB500
25	Metric / UNC / Custom	70–110	HRB500
28	Metric / UNC / Custom	80–120	HRB500
32	Metric / UNC / Custom	100–150	HRB500

Customization & Processing Services

Yoshine provides precision thread processing services for rebar ends, using CNC threading machines to match client coupler designs and international thread types. We support single-end, double-end, left-right, or reverse threads and ensure thread concentricity, pitch, and depth meet technical standards. Threaded rebars can be supplied with corresponding rebar couplers or bundled separately with protective caps for safe transport.

Product Features

• High-strength threaded ends allow for full-tension mechanical connections.

• Available in standard and custom thread types (Metric, UNC, etc.).

• Produced from HRB400 or HRB500 deformed rebar with precise machining.

• Ideal for seismic zones, vertical construction joints, and rebar cages.

• Conforms to GB1499.2, BS4449, ASTM A615, ISO 15835, and ISO 9001.

Quality Assurance

Yoshine manufactures threaded rebar under ISO 9001 quality systems using calibrated threading equipment. We inspect every batch for thread tolerance, bar integrity, and tensile capacity. All threaded bars comply with GB1499.2 (China), ASTM A615 (USA), BS4449 (UK), and ISO 15835 for mechanical rebar splicing, supported by full documentation and testing reports.

Advantages

Full-Strength Mechanical Connection

Threaded rebars enable direct bar-to-bar joining using couplers without overlapping, allowing full-strength axial load transfer and excellent continuity.

Faster Construction, No Laps Needed

Replacing lap joints with mechanical splices eliminates the need for long rebar extensions and speeds up rebar placement, especially in tight areas.

Ideal for Seismic & High Load Zones

Mechanical connections using threaded rebars are recommended for seismic detailing and zones where high axial and dynamic loads are expected.

Precise Processing & Compatibility

We tailor thread lengths and profiles to your coupler system and quality assurance standards, ensuring reliable fit and performance.

Export-Ready and Globally Certified

Yoshine’s threaded rebars meet international codes for mechanical splicing and are exported with full traceability and inspection reports for global markets.

Equivalent Grades & International Names

Region / Standard	Equivalent Grade / Name
China (GB1499.2 / ISO 15835)	Threaded Rebar (HRB400 / HRB500)
USA (ASTM A615 + A1034)	Mechanical Splice Rebar / Threaded Bar
UK (BS 4449 + BS EN ISO 15835)	Threaded Steel Bar / Coupler Rebar
International Naming	Threaded Rebar / Coupler Bar / Rebar with Thread