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.
Quality
Certification
Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.
inspection
Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.
