Threaded joints is coupler with threads. It is a relatively common in industry and daily life. The threaded joint makes the rebar connection easier to disassemble and replace, and it is cost-effectively.

The characteristics of threaded joints are as follows:

1. It has high strength and good ductility, which can give full play to the strength and ductility of the steel base material.

2. Easy to operate, fast and easy to connect.

3. The detection is convenient and intuitive.

4. The straight thread processing for steel bar can be prefabricated, and the coupler can be manufactured in a factory, which doesn't occupy the construction period and has high processing efficiency.

5. Itis environmental protection during construction and connection, and can be constructed around the clock.

6. It has strong applicability that can be flexibly used in narrow place.

7. It can connect horizontal, vertical and inclined HRB335 and HRB400 steel bars of the same or different diameters.