1. Good mechanical performance and reliable connection. As the end of the steel treated by cooling is formed by rolling, both thread and steel strength are improved which makes up for the effect of the diameter of the thread baseless than the diameter of the base circle on the strength weakening. The joint strength is higher than the parent material strength which can make the parent material give full play to its strength and ductility.

2. Convenient connection, construction, and high efficiency. The threaded rebar couplers are prefabricated in the factory. It can be operated flexibly even in a tight arrangement of rebars in a narrow place.

3. Safety and environmental protection. No welding and open flamework, also no pollution during construction.

4. Facilitate testing. There is no need to use specific detection equipment during construction. The quality of the joint can be measured only by looking at the exposed steel bar teeth.

5. Strong applicability. It is suitable for the connection of the reinforcing bars in all aseismic and non-aseismic reinforced concrete structures, as well as suitable for bending reinforcing bars, fixed reinforced bars, steel cages, overlength steel bars, and other places.