Characteristics of grade 8.8 hex bolts
The performance grade of 8.8 grade hex bolts represents the comprehensive performance of its tensile strength and yield strength. Specifically, the nominal tensile strength of 8.8 hex bolt reaches 800MPa, while the nominal yield strength is 640MPa. This performance level makes the 8.8 hex head bolt perform well when subjected to external forces, ensuring the stability and safety of the connection.
In addition, the surface of 8.8 hex bolt is usually oxidized to present a black appearance, which not only improves the corrosion resistance of the bolts but also increases their aesthetics. At the same time, oxidation treatment can also prevent the bolts from rusting during use to a certain extent and extend their service life.
Material of 8.8 hex screw
The material of hex bolt 8.8 is mainly low carbon alloy steel or medium carbon steel. After heat treatment (such as quenching and tempering), the strength and hardness of these materials can be significantly improved. The heat treatment process makes the internal structure of the bolt denser, thereby improving its mechanical properties. Therefore, 8.8 hex head bolt are classified as high-strength bolts and are widely used in situations where they need to withstand larger loads.
Application scenarios of 8.8 grade hexagonal bolts
8.8 grade bolt play an important role in steel structure engineering projects. They are often used to connect the nodes of thick steel plates in steel structures to ensure the stability and safety of the entire structure. In the fields of bridges, buildings, mechanical equipment, etc., 8.8 grade hex bolts are indispensable fasteners. In addition, due to its high strength and corrosion resistance, 8.8 grade hexagonal bolts are also suitable for working scenarios in some harsh environments, such as marine engineering, chemical equipment, etc.
Post time: Jan-09-2025