Steel structure high-strength large hexagonal bolts

The full name of steel structure bolts is called steel structure with high-strength large hexagonal head bolt connection pair, which belongs to high-strength bolts. At present, the current national standard is GB/T1228~1231-2006. Steel structure bolts are mainly used in the construction of industrial and civil buildings, railway bridges, highway bridges, pipeline bridges, tower mast structures, boiler frames, boiler steel structures, long-span industrial plants, high-rise civil buildings, various towers, light steel structures, lifting machinery and other steel structure connection buildings.

Steel structure bolts are the basic components of steel structure buildings, and compared with traditional concrete, they have the characteristics of economic and environmental protection, high strength, high resistance and good ductility.

The construction of steel structure bolts must be first tightened and then finally tightened, and the initial tightening steel structure bolts need to use impact electric wrenches or torque adjustable electric wrenches; The final tightening steel structure bolts have strict requirements, the final tightening torsion shear steel structure bolts must use a torsion shear electric wrench, and the final torque steel structure bolts must use a torque electric wrench.