8.8 High Tensile Bolts

8.8 High Tensile Bolts are made of high-strength steel, or bolts that require a larger pre-tightening force, can be called high-strength bolts. 8.8 High Tensile Bolts are mostly used for the connection of bridges, rails, high pressure and ultra high pressure equipment. The fracture of this kind of bolt is mostly brittle fracture. 8.8 High Tensile Bolts applied to ultra-high pressure equipment, in order to ensure the sealing of the container, it is necessary to apply a larger pre-stress.

Product name:8.8 High Tensile Bolts

Material grade: carbon steel 4.8, 8.8, 10.8, 12.9

Product specifications: m1.6-m64

Product features: simple structure, good acceptability, removable and replaceable

Product application : 8.8 High Tensile Bolts are mostly used for the connection of bridges, rails, high-pressure and ultra-high-pressure equipment. The fracture of this bolt is brittle fracture. High-strength bolts used in ultra-high pressure equipment need to be prestressed to ensure the tightness of the container.

8.8 The difference between High Tensile Bolts and ordinary bolts:

8.8 High Tensile Bolts means that the load it can bear is larger than ordinary bolts of the same specification.

The material of ordinary bolts is made of Q235 (that is, A3). 8.8 The material of High Tensile Bolts is 35# steel or other high-quality materials. After being made, heat treatment is carried out to improve the strength. The difference between the two is the difference in material strength.