The GB5281 standard covers Hexagonal cylindrical head shoulder screws, which are fasteners with a hexagonal drive slot and a cylindrical head designed with a shoulder for preventing the screw from sinking into the material to be fixed.
Carbon Steel: Typically used for general applications.
Stainless Steel: For environments where corrosion resistance is required.
Alloy Steels: Used in applications requiring high strength or high temperature resistance.
Advantage:
Hex Drive: The hex drive design provides a compact drive allowing for higher torque transfer. Cylindrical Head Design: Cylindrical heads are suitable for applications that require the head of the screw to be flush with or slightly below the surface. Shoulder Construction: The shoulder provides a support point for higher preload forces and prevents over-tightening or countersinking of the screw. High Strength Material: Usually made of high strength steel with good mechanical properties and corrosion resistance.
Scope of Application
Mechanical Manufacturing: In the field of mechanical manufacturing, it is used to fix rotating or sliding parts such as gears, bearings and bushings. Automotive industry: in the engine, gearbox and other critical parts of automobiles to ensure the correct positioning and fixation of parts. Electrical equipment: In electrical equipment, used to keep electrical connectors and terminals in place and prevent loosening due to vibration. Aerospace: in the aerospace sector, to ensure the precise installation and fixing of critical components to withstand extreme operating conditions.
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.
Quality 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.
