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Hexagon nuts with flange M12, EN 1661 DIN 6923 / GB/T 6177.1

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Our M12 hexagon nuts with flange are designed for efficient and reliable assembly:

  • Standard Hexagon Shape: The familiar hexagon shape allows for easy tightening and loosening with standard wrenches and sockets, common tools in automotive workshops and assembly lines.
  • Integrated Flange: The pre-attached flange simplifies the assembly process, reducing the number of parts and ensuring proper load distribution.
  • Consistent Torque Application: The flange provides a stable bearing surface for applying torque, leading to more consistent and accurate clamping force.

Key Advantages for Your Applications:

  • Enhanced Vibration Resistance: The wider bearing surface of the flange significantly improves resistance to loosening under the dynamic conditions of automotive use.
  • Improved Load Distribution: The flange spreads the clamping force, reducing stress on connected parts and preventing damage.
  • Simplified Assembly Process: Eliminating the need for separate washers reduces part count and assembly time, boosting efficiency.
  • Secure and Reliable Fastening: Ensures strong and durable connections crucial for automotive safety and performance.
  • Compliance with Key Standards: Meets the requirements of EN 1661 (DIN 6923 / GB/T 6177.1), ensuring dimensional accuracy and material quality.
  • Reduced Risk of Damage: The flange protects the mating surface from scratches and indentations during tightening.

Ideal for:

  • Chassis and Suspension Systems: Securing components like shock absorbers, control arms, and stabilizer bar links where vibration resistance is paramount.
  • Engine and Powertrain Mounting: Fastening engine mounts, transmission mounts, and exhaust system components, benefiting from the wider load distribution.
  • Body Panel Assembly: Providing secure and efficient fastening of body panels, reducing the number of parts required.
  • Steering System Components: Securing linkages and other critical steering elements where reliable fastening is essential for safety.
  • Braking System Components: Fastening caliper brackets and other non-critical braking system parts.
  • Interior and Exterior Trim: Providing a secure and integrated fastening solution for various trim elements.



Product Name Standard Material Diameter (Thread) Height/Thickness Surface Treatment
Hexagon Nut with Flange GB/T 6177-2000 45# Steel M12 10.8 mm Cold Galvanized (White Zinc)
Hexagon Nut with Flange GB/T 6177-2000 40Cr Alloy Steel M12 10.8 mm Hot-Dip Galvanized
Hexagon Nut with Flange ISO 4161 Stainless Steel A2-70 M12 11 mm Passivated (Plain)
Hexagon Nut with Flange DIN 6923 35CrMo Alloy Steel M12 11 mm Dacromet Coated
Hexagon Nut with Flange ASME B18.2.2 ASTM A563 Grade DH 1/2" (12.7mm) 0.43" (10.9mm) Zinc Plated
Hexagon Nut with Flange JIS B1189 SCM435 Chromium-Molybdenum M12 10.5 mm Phosphated
Hexagon Nut with Flange ISO 7042 Carbon Steel 8.8 M12 10.8 mm Electrogalvanized
Hexagon Nut with Flange DIN 6923 Stainless Steel A4-80 M12 11 mm Polished (No Coating)
Hexagon Nut with Flange ANSI B18.16.3 Alloy Steel Grade 10 1/2" (12.7mm) 0.43" (10.9mm) Black Oxide
Hexagon Nut with Flange GB/T 6177-2000 35K High-Speed Steel M12 10.8 mm Environmental Blue Zinc1

Thread Size M5 M6 M8 M10 M12 M14 M16 M20
D
P Pitch Coarse thread 0.8 1 1.25 1.5 1.75 2 2 2.5
Fine thread 1 / / 1 1.25 1.5 1.5 1.5 1.5
Fine thread 2 / / / -1 -1.25 / / /
c min 1 1.1 1.2 1.5 1.8 2.1 2.4 3
da min 5 6 8 10 12 14 16 20
max 5.75 6.75 8.75 10.8 13 15.1 17.3 21.6
dc max 11.8 14.2 17.9 21.8 26 29.9 34.5 42.8
dw min 9.8 12.2 15.8 19.6 23.8 27.6 31.9 39.9
e min 8.79 11.05 14.38 16.64 20.03 23.36 26.75 32.95
m max 5 6 8 10 12 14 16 20
min 4.7 5.7 7.6 9.6 11.6 13.3 15.3 18.9
mw min 2.2 3.1 4.5 5.5 6.7 7.8 9 11.1
s max=nominal size 8 10 13 15 18 21 24 30
min 7.78 9.78 12.73 14.73 17.73 20.67 23.67 29.67
r max 0.3 0.36 0.48 0.6 0.72 0.88 0.96 1.2
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Zhejiang Zhongrui Auto Parts Co., Ltd.
Zhejiang Zhongrui Auto Parts Co., Ltd.
As China Automotive Hexagon nuts with flange M12, EN 1661 DIN 6923 / GB/T 6177.1 Suppliers and Custom Hexagon nuts with flange M12, EN 1661 DIN 6923 / GB/T 6177.1 Factory.
Zhejiang Zhongrui Auto Parts Co., Ltd. was founded in 1986. The original unit is located in Ruian City, one of the birthplaces of Wenzhou's economic model, and is located in Tangxia, the "Auto Parts Capital of China". In 2004, in order to further expand its production scale, the company The industrial park in Jiaxing City, Zhejiang, which is located in a very advantageous location, acquired new land and built a modern production plant and office building. The company covers an area of ​​36,237 square meters, with a factory area of ​​20,000 square meters. The company's fixed assets are 130 million yuan.
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