Standard：DIN6921、ANSI、BSW
Size：M5-20、1/4"-1"、1/4"-1"
Grade: 48, 5.8 88, 10.9, 12.9、2,5,8
Surface：WZP, BZP, YZP, Black, HDG, Dacromet, Plain
The HEX FLANGE BOLT is a highly efficient fastening solution that combines the functions of a standard hex bolt and a washer into a single integrated design. Widely used in machinery manufacturing, automotive assembly, construction, electrical equipment, and various engineering projects, this type of bolt offers enhanced stability, improved load distribution, and increased installation efficiency.
Manufactured in strict accordance with international standards such as DIN6921, ANSI, and BSW, our HEX FLANGE BOLTS ensure excellent compatibility and reliability across global markets. These standards guarantee consistent quality, making the product suitable for both domestic use and international export applications.
In terms of size range, the product is available in both metric and imperial dimensions, including M5–M20 and 1/4"-1". This wide range allows the bolts to meet various fastening requirements, from light-duty assemblies to heavy structural applications. The versatility in sizing makes them ideal for different material thicknesses and complex installation environments.
Regarding mechanical properties, we offer multiple strength grades, including 4.8, 5.8, 8.8, 10.9, 12.9, as well as imperial grades 2, 5, and 8. Each grade provides different levels of tensile strength and load-bearing capacity. For example, Grade 8.8 is commonly used in general mechanical applications, while Grades 10.9 and 12.9 are suitable for high-strength and high-stress environments such as automotive chassis and heavy equipment, ensuring safety and durability.
To meet diverse environmental conditions, the HEX FLANGE BOLT is available with various surface treatments, including WZP (White Zinc Plated), BZP (Blue Zinc Plated), YZP (Yellow Zinc Plated), Black Oxide, HDG (Hot-Dip Galvanized), Dacromet, and Plain finish. These treatments not only enhance corrosion resistance but also extend the service life of the product. For instance, HDG and Dacromet coatings are ideal for outdoor or highly corrosive environments, while black oxide is more suitable for indoor applications where appearance and cost efficiency are important.
One of the key advantages of the HEX FLANGE BOLT lies in its design. The integrated flange acts as a built-in washer, effectively distributing clamping force and reducing the risk of damage to the connected surface. Some variants also feature serrated flanges, which provide additional anti-slip performance and help prevent loosening caused by vibration, making them particularly suitable for dynamic applications.
In practical use, these bolts are widely applied in automotive manufacturing (such as engine components and chassis systems), steel structure construction, machinery assembly, power infrastructure, and bridge engineering. Their strong resistance to vibration and reliable fastening performance make them an essential component in critical structural connections.
Throughout the production process, strict quality control measures are implemented—from raw material selection to final inspection—to ensure that every bolt meets high-performance standards. In addition, we offer customization services, including special sizes, materials, and surface finishes, to meet specific project requirements.
Choosing our HEX FLANGE BOLT means choosing a reliable, durable, and cost-effective fastening solution. We welcome your inquiries and are ready to provide professional support and tailored solutions for your applications.
HEX FLANGE BOLT – Key Features
- Integrated Flange Design
The built-in flange acts as a washer, increasing the bearing surface and evenly distributing the clamping force. This reduces surface damage and eliminates the need for additional washers, improving assembly efficiency and lowering costs. - Excellent Anti-Loosening Performance
Optional serrated flange designs provide enhanced friction during installation, effectively preventing loosening caused by vibration or dynamic loads. Ideal for automotive, machinery, and heavy-duty applications. - Wide Range of Standards
Manufactured according to DIN6921, ANSI, and BSW standards, ensuring strong compatibility and interchangeability across international markets and various industrial requirements. - Multiple Size Options
Available in metric sizes M5–M20 and imperial sizes 1/4"-1", suitable for a wide variety of applications ranging from light-duty fastening to heavy structural connections. - מגוון Strength Grades（High Strength Options）
Offered in grades 4.8, 5.8, 8.8, 10.9, 12.9 and imperial grades 2, 5, 8. Different strength levels meet diverse load-bearing requirements, from general use to high-stress environments. - Various Surface Treatments
Includes WZP, BZP, YZP, Black Oxide, HDG, Dacromet, and Plain finishes. These treatments enhance corrosion resistance and extend service life, suitable for both indoor and outdoor environments. - Durable and Corrosion Resistant
High-quality materials combined with advanced surface treatments ensure long-term durability, even in harsh conditions such as humidity, chemicals, or outdoor exposure. - Easy and Efficient Installation
The one-piece design simplifies installation, reduces assembly time, and minimizes the risk of missing components, improving overall work efficiency. - Wide Application Range
Commonly used in automotive systems, construction projects, steel structures, machinery equipment, and power installations, offering reliable fastening performance in critical applications. - Customization Available
Supports customized sizes, materials, grades, and surface treatments to meet specific project or industry requirements.
Product Advantages
- Cost-Effective Solution
The integrated flange design eliminates the need for separate washers, reducing material costs and simplifying procurement. This also lowers inventory complexity and overall project expenses. - Improved Assembly Efficiency
With a washer built into the bolt head, installation becomes faster and easier. Workers can reduce assembly steps, saving time and labor costs, especially in large-scale projects or automated production lines. - Enhanced Load Distribution
The flange provides a larger contact surface, which helps distribute clamping force more evenly. This minimizes the risk of surface deformation and improves the stability of the connection. - Strong Anti-Vibration Performance
Optional serrated flange surfaces increase friction and grip, effectively preventing loosening under vibration or dynamic loads. This makes the bolt highly reliable in demanding environments such as automotive and heavy machinery. - Wide Versatility
Available in multiple standards (DIN, ANSI, BSW), sizes, strength grades, and surface treatments, the HEX FLANGE BOLT can be used across a wide range of industries and applications, meeting diverse engineering requirements. - Excellent Corrosion Resistance Options
A variety of surface finishes such as HDG and Dacromet provide superior protection against rust and corrosion, making the product suitable for outdoor, marine, and high-humidity environments. - High Strength and Reliability
With strength grades up to 12.9, these bolts are capable of handling high loads and critical fastening applications. They ensure long-term performance and structural safety. - Reduced Risk of Assembly Errors
The one-piece design reduces the number of components needed during installation, minimizing the chance of missing washers or incorrect assembly, which improves overall reliability. - Suitable for Automated Production
The simplified structure and consistent quality make HEX FLANGE BOLTS ideal for automated assembly lines, improving production efficiency and consistency. - Customization Flexibility
Supports tailored solutions including special dimensions, materials, coatings, and packaging, helping customers meet specific project needs and market demands.
