High Strength Bolt Grade 8.8 External Hexagonal Screw Grade 10.9 Bolt Screw Grade 12.9 Full and Half Button Hexagonal Screw
High strength bolts applied to ultra-high pressure equipment need to be prestressed to ensure the sealing of the container.
Bolts made of high-strength steel or requiring large preload can be called high-strength bolts. High strength bolts are mostly used for the connection of bridges, rails, high-voltage and ultra-high voltage equipment. The fracture of this kind of bolt is brittle fracture.
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