Application Of Steel Structure Bolts

1、 Steel structure bolts are mainly used in steel structure engineering projects to connect the joints of thick steel plates of steel structures. It is a high toughness bolt and a standard part. The tightening characteristics are relatively good, which is used to improve the tightening effect in steel structure and engineering projects. In general, the specified steel structure bolts are above grade 8.8, but also grade 10.9 and grade 12.9. They are all high toughness steel structure bolts. Sometimes the bolts on the steel structure do not need electroplating process and can be in primary color

2、 Steel structure bolts are divided into torsional shear high-strength bolts and large hexagon head high-strength bolts. Large hexagon high-strength bolts belong to the high toughness level of general screws, while torsional shear high-strength bolts are an improved version of large hexagon high-strength bolts for better engineering construction.

Common problems in the construction of steel structure bolts: the engineering construction of steel structure bolts must be tightened first and then finally. The impact electric wrench or torque adjustable electric wrench shall be used for the initial tightening of steel structure bolts; The final tightening of steel structure bolts has strict regulations. The final tightening of torsional shear steel structure bolts must use torsional shear electric wrench, and the final tightening of torque steel structure bolts must use torque electric wrench. The large hexagonal angle steel structure bolt is composed of one bolt, one nut and two washers. The torsion shear steel structure bolt is composed of a bolt, a nut and a washer.