Screw thread steel is widely used in infrastructure construction such as buildings, bridges, roads, and tunnels. In concrete structures, rebar is mainly used to reinforce and enhance the tensile performance of concrete, improve the bearing capacity and stability of buildings. In addition, in earthquake prone areas, the use of threaded steel can effectively improve the seismic performance of buildings and ensure the safety of people's lives and property.

The full name of steel reinforcement is steel used for reinforced concrete, and its cross-section is usually circular or square with rounded corners. There are various types of steel bars, which are classified according to various methods such as chemical composition, production process, rolling shape, supply form, diameter size, and use in structure. Common steel bars include round steel bars, ribbed steel bars, and twisted steel bars, which play different roles in building structures.