16 mm EN8D STEEL TMT Rebar Coupler Manufacturer Rebar Coupler, Taper Coupler, Parallel Threaded Coupler Manufacturer Coupler Type - Parallel Threaded Coupler Material - Carbon Steel Standard Compliance - IS 16172, ACI 318 Threading Technology - Roll Threaded Coupler Length - 40 mm Thread Pitch - 2.5 mm Finish / Coating - Uncoated / Self-Colour Application - Industrial Complexes, Infrastructure (Bridges; Flyovers; Metros), General Construction (Buildings; Slabs) Rebar Diameter - 16 mm Outer Diameter (OD) - 25 mm Minimum order quantity: 600 Piece A 16 mm EN8D Steel TMT (Thermo-Mechanically Treated) Rebar Coupler is a specialized mechanical connector used to join two rebars (reinforcing bars) in construction projects, typically made from EN8D steel.