Hexagon Flange Bolts - Heavy Series GB 5789, DIN EN 1665 truck parts, car parts bolts, heavy duty vehicle use—— Our GB 5789 Heavy Series Hexagon Flange Bolts are engineered with efficiency and reliability in mind for automotive assembly processes: Standard Hex Head: The universally recognized hexagonal head allows for straightforward tightening and loosening with standard wrenches and sockets, facilitating efficient assembly line operations. Integrated Flange: The pre-attached flange simplifies assembly by eliminating the need for a separate washer, reducing part count and streamlining the fastening process. It also ensures the bolt is properly seated. Standardized Dimensions: Adherence to the GB 5789 standard ensures consistent dimensions and form, promoting interchangeability and smooth integration into existing automotive designs and assembly protocols. Clear Identification: As a standard bolt type, they are easily identifiable for proper selection and use during manufacturing and maintenance. Key Advantages for Your Applications: Leveraging GB 5789 Heavy Series Hexagon Flange Bolts in your automotive assemblies provides distinct advantages: Superior Strength and Load Capacity: As a "Heavy Series" bolt type, they are designed with increased dimensions compared to standard bolts of the same nominal diameter, providing enhanced tensile and shear strength to reliably withstand significant loads and stresses in demanding automotive applications. (These are commonly available in high-strength Property Classes like 8.8, 10.9, and 12.9). Enhanced Load Distribution: The integrated flange distributes the clamping force over a larger bearing area, reducing stress concentration on the joined components and helping to prevent damage, particularly on materials less resistant to compression. Improved Vibration Resistance: The wider bearing surface provided by the flange, combined with the ability to achieve high clamping force due to their inherent strength, contributes to better resistance against loosening caused by the vibrations and dynamic forces common in vehicle operation. Simplified Assembly: The elimination of separate washers accelerates assembly times and reduces the risk of incorrect part usage, boosting overall production efficiency. Durable and Reliable: Manufactured from high-quality steel alloys (often with appropriate heat treatment), these bolts offer excellent durability and maintain their performance over the long lifespan of the vehicle. Corrosion Protection Options: Available with various surface treatments (such as zinc plating, hot-dip galvanizing, Dacromet, etc.) to provide necessary corrosion resistance against road salts, moisture, and chemicals encountered in automotive environments. Standardized Reliability: Compliance with the national GB 5789 standard ensures consistent form, fit, and mechanical properties, crucial for predictable performance and quality assurance in automotive manufacturing. Ideal for: GB 5789 Heavy Series Hexagon Flange Bolts are ideally suited for critical connections in automotive applications that demand high strength and reliable performance under significant load: Chassis and Frame Assembly: Securing key structural elements of the vehicle frame or subframe that bear substantial loads and require robust fastening. Suspension Mounting Points: Attaching heavy components like axles, control arms, and suspension linkages to the chassis where high loads are transferred and reliable performance is paramount for safety. Heavy-Duty Powertrain Mounts: Fastening engines, transmissions, or drive axles in trucks, buses, and heavy-duty vehicles. Trailer Hitch and Towing Components: Ensuring secure and robust connections for towing applications. Large Brackets and Assemblies: Attaching heavy ancillary systems or large components to the vehicle structure. Applications Requiring High Clamping Force: Used in joints where achieving and maintaining a high clamping force is essential for assembly integrity and preventing separation under stress. At Zhejiang Zhongrui Auto Parts, an IATF16949 certified OEM fastener manufacturer in China, we specialize in providing high-quality fastening solutions for the global Automotive Industry . We are your expert source for custom automotive fasteners , including precision custom bolts , custom nuts , OEM automotive pins , washers, screws, and more. Sourcing directly from our China factory ensures the quality , reliability , and precision required for demanding vehicle applications and OEM auto parts . Ready to source reliable automotive fasteners? ------> GBT5789 DIN EN 1665 hex flange bolt latest inventory update Material Name Specification Surface Treatment Inventory (Pieces) GB/T5789 Hexagon Flange Bolt M10*35-10.9 Anti-slip Teeth Galvanized 50 GB/T5789 Hexagon Flange Bolt M10*130 Galvanized 40 GB/T5789 Hexagon Flange Bolt M10*20-10.9 Galvanized 52,200 GB/T5789 Hexagon Flange Bolt M10*40-10.9 Half Thread Galvanized 1,800 GB/T5789 Hexagon Flange Bolt M10*40- Half Thread Galvanized 62,400 GB/T5789 Hexagon Flange Bolt M10*70 Galvanized 450 GB/T5789 Hexagon Flange Bolt M12*25 Galvanized 35,500 GB/T5789 Hexagon Flange Bolt M12*30-8.8 Galvanized <span style="outline: none; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: "book antiqua", palatino; font-opt