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High Strength Bolts

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High Strength Bolts

High strength bolts refer to bolts whose performance level needs to reach 8.8, 10.9, 12.9, etc., and are called high strength bolts. High strength bolts are made of high strength waste materials. The screws, nuts, and washers of high strength bolts are made of high strength steel. Commonly used are 45-gauge steel, 40-boron steel, 20-manganese-titanium-boron steel, and 35CrMoA. High strength bolts can withstand a greater load than ordinary bolts of the same specification. In addition to their high material strength, high strength bolts apply a large preload to the bolts, which is a squeezing force between the connecting members, which makes it perpendicular to the screw There is a lot of friction in the direction, and the preload, anti-slip coefficient and steel type directly affect the bearing capacity of high strength bolts. High strength bolts are mostly used for the connection of bridges, rails, high-pressure and ultra-high pressure equipment.
The full name of high strength bolts in production is called high strength bolt connection pair, generally not referred to as high strength bolts. High strength bolts are mainly used in industrial and civil buildings, railway bridges, highway bridges, pipeline bridges, tower mast structures, boiler frames, boiler steel structures, large-span industrial plants, high-rise civil buildings, various towers, light steel structures, Construction of heavy machinery and other steel structure connected buildings. Each connection pair includes a bolt, a nut, and two washers.