Our DIN 6921 Hexagon Flange Bolts are engineered for user-friendly and efficient integration into automotive assembly lines: Key Advantages for Your Applications: Accelerated Assembly Times: Elimination of separate washers speeds up the production process, boosting efficiency in automotive plants. Minimized Part Count: Reduces complexity in the bill of materials and simplifies inventory management. Superior Vibration Resistance: Integral flange provides enhanced locking capability, crucial for the longevity and safety of vehicles. Consistent Clamping Force: Ensures reliable joint integrity across various automotive systems. Reduced Stress on Components: Larger bearing surface protects softer materials and prevents damage. Global Standard Compliance: DIN 6921 is a globally recognized standard, facilitating seamless integration into international automotive supply chains. Ideal for: Chassis Assembly: Securing frame components, subframes, and suspension mounts where vibration resistance and load distribution are paramount. Powertrain Mounting: Fastening engine and transmission mounts, ensuring secure and stable integration. Braking Systems: Attaching calipers, rotors, and other critical braking components, prioritizing safety and reliability. Exhaust System Assembly: Securing exhaust manifolds and pipes, where resistance to heat and vibration is essential. Seating and Interior Fixtures: Providing robust and efficient fastening for seats, dashboards, and trim elements. Body Panel Attachment: Securing exterior body panels with a clean and efficient fastening solution. Steering System Components: Fastening linkages and other critical steering elements. Product NameStandardMaterialDiameterLengthHexagon Flange BoltDIN 6921Carbon Steel, Zinc PlatedM520 mmHexagon Flange BoltDIN 6921Carbon Steel, Zinc PlatedM625 mmHexagon Flange BoltDIN 6921Carbon Steel, Zinc PlatedM830 mmHexagon Flange BoltDIN 6921Carbon Steel, Zinc PlatedM1040 mmHexagon Flange BoltDIN 6921Stainless Steel A2-70M1250 mmHexagon Flange BoltGB/T 16674.1-201665Mn Steel, GalvanizedM625 mmHexagon Flange BoltGB/T 16674.1-201665Mn Steel, GalvanizedM830 mmHexagon Flange BoltGB/T 16674.1-201665Mn Steel, GalvanizedM1040 mmHexagon Flange BoltISO 4162AISI 304 Stainless Steel1/4" (6.35mm)1.5" (38mm)Hexagon Flange BoltISO 4162AISI 304 Stainless Steel5/16" (7.94mm)2" (50.8mm)Hexagon Flange BoltANSI B18.2.3.9MASTM A307, Plain Finish0.5"4" (101.6mm)Hexagon Flange BoltANSI B18.2.3.9MASTM A307, Plain Finish0.75"6" (152.4mm)Hexagon Flange BoltJIS B 1189SCM440 Alloy SteelM1250 mmHexagon Flange BoltJIS B 1189SCM440 Alloy SteelM1680 mmHexagon Flange BoltEN 1665 (R)42CrMo4 Alloy SteelM10100 mmHexagon Flange BoltEN 1665 (R)42CrMo4 Alloy SteelM12120 mmHexagon Flange BoltASME B18.2.3.9MSAE J429 Grade 5, HDG0.625"8" (203.2mm)Hexagon Flange BoltASME B18.2.3.9MSAE J429 Grade 5, HDG1"12" (304.8mm)