China Four claw nuts Manufacturer, Supplier, Factory

When it comes to securing components in demanding mechanical applications, the Four-jaw nut stands out as a superior choice. This specialized fastener is engineered for maximum holding power and vibration resistance, making it an indispensable component in industries from aerospace to heavy machinery. Its unique four-point contact design ensures a more uniform distribution of load and stress compared to standard nuts, significantly reducing the risk of loosening under extreme conditions. The Four-jaw nut is particularly valued for its reliability in assemblies where safety and performance are non-negotiable. For engineers and procurement specialists seeking a robust and dependable fastening solution, the Four-jaw nut offers a proven track record of enhancing the integrity and longevity of mechanical systems.


The Four claw nuts are manufactured to exacting standards, featuring a design that integrates seamlessly with a variety of bolt types. Key product parameters are detailed below to provide a comprehensive overview of their specifications and capabilities. The following list outlines the primary material options and their respective properties, while the subsequent table provides precise dimensional data for standard sizes.

  • Material: Available in Carbon Steel (Grade 5/8), Stainless Steel (304/316), and Alloy Steel, each offering distinct advantages in strength, corrosion resistance, and temperature tolerance.
  • Surface Finish: Options include Zinc Plating, Hot-Dip Galvanizing, and Phosphate Coating to enhance durability and prevent rust in various environmental conditions.
  • Hardness: Typically ranges from HRC 22 to 35 for carbon steel, ensuring a balance between toughness and machinability.
  • Temperature Range: Standard versions perform reliably from -50°C to +250°C, with high-temperature alloys available for more extreme applications.
  • Standards: Manufactured in compliance with DIN 934, ISO 4032, and ANSI B18.2.2, guaranteeing international quality and interchangeability.
Thread Size (M) Width Across Flats (mm) Height (mm) Recommended Torque (Nm) Proof Load (kN)
M6 10 5.0 10 12.5
M8 13 6.5 25 20.0
M10 17 8.0 45 32.0
M12 19 10.0 70 45.5
M16 24 13.0 150 82.0

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