Space frame high strength bolt

1、High strength bolt is just a kind of standard bolt with high strength. Space frame project adopts special high-strength bolts, high strength bolts belong to high-carbon steel

2、General steel structure project adopt twist shear type high strength bolts and large hexagon

3、High-strength bolted connections have the advantages of simple construction, good mechanical performance, disassembly, fatigue resistance, and no loosening under dynamic loads.

4、The appearance and connection structure of high-strength bolts are similar to ordinary bolts. The main difference is that ordinary bolts realize shear force transmission through shaft bearing and shear resistance, and the pre-tension force is small when the bolt cap is tightened; in terms of pre-tension force, high-strength bolts can apply a large pre-tension force to the bolt by tightening the bolt cap.

5、Common methods of tightening bolt caps include the torque method and angle method; for shear-type high-strength bolts, the tail of the twisted bolt is used to control the pre-tension. High-strength bolts are made of high-quality alloy structure and are made by high-tech heat treatment, and are generally drilled into holes.

6、The anti-corrosion of high-strength bolts mainly includes: oil quenching, cold galvanizing