RTST – Transition Coupler


1 – Peel and thread the end of the reinforcing bars using INCON’s threading machine.

2 – Screw the RTST Coupler by rotating it clockwise on the threads of one of the reinforcing bars.

3 – Align the second bar and screw it inside the coupler until the connection is completely secured.


RTST Coupler is composed of a steel tube, which has two different internal thread sizes that accommodate threaded bars of different diameters.


RTST Coupler is widely used for general construction applications where the rotation and axial movement of at least one bar is allowed.


Satisfies the requirements of Type 2 couplers for use with Grade 60 reinforcing bars.
Conforms to major building codes and standards including ACI 318, CSA A23.3, BS 8110 and DIN 1045.
Easily installed and highly efficient for connecting bars of different diameters on site.
Accurate splice length control due to the precise coupler joint.
Compact design of the coupler to reduce reinforcement congestion.


Uncoated Steel: used with uncoated steel bars in typical construction applications.
Zinc-Coated Steel: used with zinc-coated bars and for other special applications.
Galvanized Steel: used with galvanized steel and for other special applications.
Epoxy-Coated Steel: used with epoxy-coated bars and for other special applications.
Stainless Steel: used with stainless steel bars and for other special applications.