Bolts made of high strength steel or requiring a large preload can be called high tensile bolts. High tensile bolts are mainly used for connecting Bridges, rails, high pressure and ultra high pressure equipment. High tensile bolts are made of high strength materials. The screw, nut and washer of high strength bolt are made of high strength steel, commonly used 45 steel, 40 boron steel, 20 manganese titanium boron steel, 35CrMoA and so on. High tensile bolts apply pretension and transfer force by friction. High tensile bolted connection is to clamp the plates of the connecting plate through a large tightening pre-pressure in the bolt rod, which is enough to produce a large friction force, so as to improve the integrity and stiffness of the connection.
We can customize all kinds of bolts according to the drawings provided by customers.
