Application of connecting joints is today a fast-growing and competitive industry in mounting and installation of reinforcement cages butt overlap. As a result of the study can be concluded that: Among the existing methods of splicing reinforcement stykovanie butt by crimp sleeves and screw coupling, has the good performance of saving labor costs, time and material.

Keywords: fittings, crimp sleeves, screw coupling, welding method, the compound overlap, mating fittings, mechanical clutch, saving, new species, use