Hexagonal Transition Reducing Coupler For Different Diameter Rebar Conversion Works

Transition hexagonal coupler= combination of size-changing function and hexagonal shape.Developed based on hexagonal standard coupler, transition model reserves anti-slip twelve-sided outer appearance but owns two unequal inner bore threads to connect disparate diameter rebars. Each end thread is separately machined according to corresponding bar specification, no need to assemble two independent couplers for diameter transition. Perfect for structural positions requiring rebar size change during concrete construction.

Material: 45C/40CR

Meet the requirements of steel bars: HRB500/B500B/SD600/ASTM 75

Standard: BS4449, ISO15835,ACI318

HS CODE:7318190000

Machining Craft: Precision CNC turning + integral twelve-facet forming + standard parallel thread

Surface Options: Raw black finish, hot-dip galvanized, epoxy anti-corrosion coating

▎Product Structure & Design Concept

This rebar coupler adopts a unique twelve-sided outer profile, which is different from conventional round-style couplers. The evenly distributed flat surfaces are professionally designed to match common construction wrenches. The inner cavity is processed into standard parallel thread, which can be perfectly matched with threaded rebars of mainstream specifications. The integrated one-piece structure enhances overall rigidity and avoids deformation under long-term building load.

▎Advantage:

Integrated one-piece hexagonal structure avoids assembly gap and connection looseness compared with combined spliced transition fittings. Uniform outer hex shape keeps consistent spanner clamping effect no matter big or small rebar end. Flexible arbitrary diameter combinations meet personalized construction design demands unavailable from regular equal-diameter hexagonal couplers. Anti-rust coating choices fit high-corrosion coastal and underground projects.

▎Application & Installation Position

Suitable for beam-column connections, tunnel reinforcement, municipal bridges, residential building main reinforcement and other construction scenes with limited operating space.

▎Production & Quality Supervision

All raw steel materials are strictly screened for hardness and material composition before production. Professional forming tools ensure uniform outer shape and accurate thread dimension. Each production batch will take random sampling for tensile testing to verify connection strength. Unqualified products will be eliminated strictly before warehousing.

▎Packaging & Delivery Arrangement

Regular products are packed with export-grade cartons. Large quantity orders will be loaded on heat-treated wooden pallets to ensure safe long-distance transportation. Standard specifications are kept in stock and can be delivered within 3–5 working days. Customized products will be arranged for production according to customer requirements.

▎TKD Description

Anti-slip twelve-facet hexagonal parallel thread rebar coupler with high rigidity, easy for wrench operation and widely used in narrow-space concrete reinforcement connection.