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High strength bolt is just a kind of standard bolt with high strength. Space frame project adopts special high strength bolt.General steel structure project adopt twist shear type high strength bolts and large hexagon high strength bolt.A very important feature of high-strength bolts is for one-time permanent connection.
High strength bolt connection has the following advantage: simple and fast installation, high bearing strength, superior mechanical performance, secure and reliable. Therefore, high strength bolt is widely used in large span of structure, industrial plant, bridges structure, high-rise steel frame structure, and other important structure.