Jingxian HengXiang rebar connection equipment factory is specialized in manufacturing parallel thread rebar couplers. It is used to rebar machaincal splicing in reinfored concrete structure, and it is designed to connect threaded rebar with diameter from 16mm to 40mm. Description of rebar coupler: Material: 45# carbon steel Sizes: 12mm - 40mm Thread Angle: 60 / 75 Thread Pitch: 2.5P / 3.0P Normal Packing: cartons for coupler, then into wooden pallet.