Hexagon socket head bolts ISO 7380, also known as hexagon socket flat round head screws, are a common fastener. This bolt has a flat round head with a hexagonal polygonal slot. It conforms to the international standard ISO7380:1997, covering thread diameters from M3 to M16, with performance classes including grades 8.8, 10.9 and 12.9, and a product grade A.
Material: including carbon steel, alloy steel, stainless steel (such as 304, 316, 316L, etc.) and other materials, the specific selection depends on the working environment and application requirements.
Grade: The product grade is divided into A grade and B grade, as well as different mechanical properties grade (such as 4.8 grade, 8.8 grade, 10.9 grade,A2-70, etc.), these grades reflect the tensile strength, yield strength and other mechanical properties of the bolt. Different grades are suitable for different load bearing requirements and working environments.
Advantage：
Compact structure: the head can be buried in the countersunk holes of the parts, smooth shape, suitable for space-constrained occasions.
High tightening torque: the hexagonal design can withstand a large tightening torque, high strength of the joint.
Easy to install: can be installed and uninstalled using an ordinary hexagonal wrench.
High-strength grade: High-strength options such as 8.8, 10.9 and 12.9 are available for high-strength connection needs.
Variety of materials: carbon steel or stainless steel can be selected to meet the corrosion resistance needs of different environments.
Scope of
application
Mechanical equipment: Used in the structural fixing and connection of mechanical equipment.
Electrical equipment: Used in the assembly of electrical equipment to secure circuit boards or other components.
Furniture manufacturing: in the assembly of furniture to provide a solid connection.
Construction industry: for the structural fixing of buildings, e.g. for the installation of doors and windows.
Automotive industry: for the connection and fixing of automotive components.
