ADTO Tapered Thread couplers are suitable for the majority of construction projects applications that require the connection of rebars.

They are normally supplied fitted to the end of the threaded bar and require only the engagement and tightening of the adjoining bar on-site using a calibrated torque wrench. Below we will introduce six kinds of thread coupler for your consideration.

#1 TTA Parallel Thread Adaptors

The TTA Tapered Thread Parallel Thread Adaptor accepts a standard metric bolt or studding. It is particularly useful for connecting temporary fixtures to concrete. Once the fixture is removed, reinforcement continuity can be achieved in the second phase construction by using another TTA adaptor and central threaded stud.

#2 TTH Headed Anchors

Headed anchors provide dead end embedment in concrete and can be used as an alternative to hooked bars. They are available to suit bar sizes 12mm to 40mm.

#3 TTT Transition Couplers

The transition range is used to join rebars of different diameters when it is possible to rotate one bar and is designed to achieve failure loads greater than 115% of the characteristic strength of the smaller diameter grade 500 bar. The couplers are designed to suit bar sizes 12mm to 50mm.

#4 TTW Weldable Couplers

Tapered Thread Weldable couplers are used to connect reinforcing bars to structural steel sections or plates and are available to suit bar sizes 12mm to 50mm.

#5 TTP Positional Couplers

ADTO Positional Tapered Thread Couplers are used to join two straight, bent or curved bars when neither bar can be rotated. Available to suit bar sizes 12mm to 50mm, they can also be used as a gap closer between two fixed bars. The male and female components provide a degree of adjustability and the connection is secured by the tightening of a locknut.

#6 TTS Standard Couplers

ADTO Standard Tapered Thread Couplers are designed for use when connecting two bars of the same diameter, where one bar can be rotated. They are available to suit bar sizes 12mm to 50mm.