The Tapered Thread Transition coupler is used to join reinforcing bars of different diameters where one coupler can be rotated.
With all the benefits of the Standard range, Transition couplers are designed to achieve failure loads greater than the national code requirement of the smaller diameter grade 500 reinforcing bar. The Transition coupler comprises an internally threaded sleeve with two right hand threads both of which are tapered towards the middle of the coupler. The diameter of each thread corresponds to the appropriate bar size. A nominal +25mm should be allowed per threaded bar end for square cutting the bar end.