Steel structure bolt is a kind of high strength bolt, which is also a kind of standard parts. The fastening performance is better. It is used in steel structure and engineering to make the fastening effect more effective.
Steel structure bolts are divided into torsional shear type high-strength bolts and large hexagon high-strength bolts. The large hexagon high-strength bolts belong to the high strength level of common screws, while the high-strength bolts are the improved type of large hexagon high-strength bolts, so as to better construction.
The construction of steel structure bolts must be initially tightened before final tightening. The impact electric wrench or torque adjustable electric wrench is required for the initial tightening of steel structure bolts; The final tightening steel structure bolts have strict requirements. The final tightening torque shear steel structure bolts must be made of torque shear type electric wrench, and the final tightening torque type steel structure bolts must use torque type electric wrench. The big six angle steel structural bolts are composed of one bolt, one nut and two washers.
