Bolts made of high-strength steel, or which require a l […]
Bolts made of high-strength steel, or which require a large preload, can be called high-strength bolts. High-strength bolts are often used for the connection of bridges, rails, high-pressure and ultra-high pressure equipment. The breakage of such bolts is mostly brittle fracture. High-strength bolts used in ultra-high pressure equipment require a large pre-stress to ensure the seal of the container.