GB948/DIN7991 Semi-countersunk head screws are screws with a semi-countersunk head design, usually used in applications where the head of the screw is required to be partially embedded in the surface of the part to be fixed. The head of this screw is designed with a hemispherical shape to provide a smooth transition, while the hexagonal slot design facilitates quick installation and removal using a hexagonal wrench.
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:
Precise Adjustment: Semi-countersunk head design allows the screw head to be partially countersunk into the surface of the piece being fastened, providing precise adjustment and fastening. Aesthetics: The cross slot design provides good driving force and is easy to install and remove manually, while the semi-countersunk head design allows for a flat, more aesthetically pleasing appearance after installation. High torque transmission: Hexagonal design provides high driving torque and reduces the risk of wire slippage. Anti-loosening performance: GB948/DIN7991 screws usually use H-type or Z-type hexagon socket, which has good anti-loosening performance.
Scope of Application
Wooden furniture: in the assembly of wooden furniture, it is used to connect and fix the parts, such as drawers and door panels. Metal products: in the assembly of metal products, it is used to fix the parts that need half countersinking treatment. Mechanical equipment: in mechanical equipment, used to fix the parts that need half countersinking treatment, such as panels, hoods and so on. Architectural decoration: In architectural decoration, it is used for fixing interior decorative panels, ceilings, etc.
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.
