Release time：2020-01-16 18:44 Browse：
1. **Standard and Grade** - Strictly conform to GB5789, a Chinese national standard, ensuring precise dimensions, thread specifications, and quality control. Rated as 10.9 grade, with a minimum tensile strength of 1000 MPa and yield strength of 900 MPa, ideal for high - stress, heavy - duty applications. 2. **Design Features** - **External Hexagon Flange**: The external hexagon head allows for easy torque application using wrenches, while the integrated wide flange distributes load evenly across the surface, reducing the risk of indentation and enhancing anti - loosening performance. - **Anti - slip Toothed Surface**: The underside of the flange is equipped with serrated teeth that bite into the mating surface, providing excellent resistance to vibrations and preventing rotation during operation, ensuring a secure and long - lasting connection. 3. **Material and Manufacturing** - Constructed from high - quality alloy steel, heat - treated to achieve the 10.9 - grade strength requirements. The steel composition ensures superior mechanical properties, including high fatigue resistance and durability. 4. **Thread and Fastening** - Feature precisely cut threads that comply with GB5789 standards, guaranteeing consistent engagement with nuts or tapped holes. The thread design optimizes clamping force, enabling efficient transfer of tension and shear loads in the fastened assembly. 5. **Corrosion Resistance** - Often treated with surface coatings such as zinc plating or hot - dip galvanization, offering enhanced protection against corrosion. This makes them suitable for use in various environments, including outdoor and industrial settings. 6. **Installation and Usage** - Compatible with standard hex wrenches or socket tools, facilitating straightforward installation. Ideal for applications in construction, machinery manufacturing, automotive, and heavy equipment, where reliable and vibration - resistant fastening is critical. 7. **Benefits** - Eliminates the need for additional washers or lock washers due to the integrated flange and anti - slip teeth, simplifying assembly processes and reducing costs. - The combination of high strength and anti - slip features ensures the stability and safety of structures or equipment under dynamic loads and harsh operating conditions. 8. **Quality Assurance** - Subject to rigorous quality control tests, including tensile strength testing, hardness testing, and thread gauge inspections, to ensure compliance with GB5789 and 10.9 - grade specifications, providing users with reliable and consistent performance.
