The cross recessed semi-countersunk head machine screws under GB820 are a common fastener characterized by a semi-countersunk head design, i.e., the head is partially countersunk into the surface of the part to be fastened, but not completely, thus providing a solution that is both aesthetically pleasing and provides good fastening force. This type of screw is typically used in applications where a semi-hidden screw head is required.
Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.
Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.
Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.
Advantage:
Furniture Manufacturing: Used in the assembly of furniture to join components to provide a solid and neat looking connection. Electronic Equipment: Used in the fixing of housings or components of electronic equipment to maintain the neat appearance of the equipment. Mechanical assembly: In mechanical equipment, for use in the fixing of components requiring semi-countersunk head screws.
Scope of Application
Aesthetics: The semi-countersunk head design allows the head of the screw to be partially hidden under the surface of the part being fastened, providing a more aesthetically pleasing connection. Tightening force: Semi-countersunk head screws provide better tightening force than flat head screws. Universality: Compliance with GB820 standard ensures compatibility with other standard parts.
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.
