Premium Steel Galvanized Upset Forging Parallel Thread Coupler

This upset forging galvanized parallel thread coupler differs from common straight thread fittings. Rebar end is upset and thickened first to expand thread bearing area, effectively preventing thread slip under heavy load. Whole surface undergoes hot-dip galvanizing instead of spray paint, forming integrated zinc protective layer that closely adheres to steel substrate to block moisture and chloride penetration.

Size: from 12mm to 40mm.

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

Material: 45C/40CR

Standard: BS4449, ISO15835,ACI318

Certificate: UK ,DCL

Zinc Coating Thickness: 85μm~120μm

Working Environment: Salt fog, coastal, underground damp projects

▎Advantage

• Excellent anti‑corrosion and anti‑rust performance.

• High structural strength and stable connection performance.

• Good durability, suitable for indoor and general outdoor projects.

• Easy installation and compatible with standard construction.

• Cost‑effective and reliable for long‑term use.

▎Application & Installation Position

• Basement, underground garage, underground structure. Basement floor slab, wall panel, column, long-term damp area, easily damp area

• Outdoor open-air structures. Outdoor frame columns, beams, canopies, balconies, and parts directly exposed to rain and sun

• Waterfront and high-humidity environments. Pools, pump rooms, tunnels, pipe galleries and culverts around bathrooms and other areas with high moisture content.

• Projects with high aesthetic requirements. Municipal projects, resettlement housing, and high-end real estate projects where the client demands a clean and tidy appearance and resistance to rust.

• Suitable for cross-sea bridges, offshore engineering, coastal dock, subway foundation, saline land construction and seaside high-rise buildings under strong salt corrosion surroundings.

▎Packing & Delivery

Export-grade carton plus fumigated wooden pallet packaging avoids zinc layer scratch during sea transit. Standard stocked items deliver within 3~7 working days, customized orders are scheduled based on customer drawing requirements.