Steel structure bolt is a kind of high-strength bolt and a kind of standard part. Steel structure bolts are mainly used in steel structure engineering to connect connection points of steel structure plates. Steel structure bolts are divided into torsional shear type high-strength bolts and large hexagonal high-strength bolts. Large hexagonal high-strength bolts belong to the high-strength grade of common screws, while torsional shear type high-strength bolts are the improvement of large hexagonal high-strength bolts. For better construction, the construction of steel structure bolts must be tightened first and then finally. For initial tightening of steel structure bolts, impact type electric wrenches or torque adjustable electric wrenches are required. The final tightening of steel structure bolts has strict requirements. The final tightening of torsional shear type steel structure bolts must use torsional shear type electric wrench, and the final tightening of torque type steel structure bolts must use torque type electric wrench. The torsional shear type steel structure bolt consists of a bolt, a nut, a torsional shear type high strength bolt steel structure large hexagonal bolt and a washer.