China Heavy Hex Structural Nut Manufacturer, Supplier, Factory

When it comes to securing heavy-duty structural connections, the Heavy Hex Structural Nut stands out for its exceptional strength and reliability. This nut is engineered to meet rigorous standards, making it a top choice for construction, infrastructure, and industrial applications where safety and durability are non-negotiable. Its design ensures a tight, secure fit, distributing load efficiently to prevent loosening under extreme stress. For projects that demand additional surface contact and vibration resistance, consider complementary products like Hexagon nuts-washer faced, which integrate a washer face to enhance clamping force. In scenarios requiring a low-profile solution for locking or spacing, the Hexagon flat jam nut offers a thinner design ideal for secondary fastening. For applications needing a robust, flat-bearing surface, the Heavy Hex Flat Nut provides similar heavy-duty performance with a focus on stability. Each of these nuts, including the Heavy Hex Structural Nut, adheres to industry specifications, ensuring compatibility and long-term performance in demanding environments.


The Heavy Hex Structural Nut is specifically designed to exceed expectations in high-stress applications, such as bridges, towers, and heavy machinery. Manufactured from premium materials like carbon steel or alloy steel, it undergoes strict quality control to guarantee consistent performance. Key parameters include precise thread dimensions, high tensile strength, and corrosion resistance, which are critical for maintaining structural integrity over time. Below is a detailed overview of its specifications, presented in both a list for quick reference and a table for comprehensive comparison. This nut typically conforms to standards like ASTM A563 or similar, ensuring it meets global requirements for safety and reliability. Whether used in dynamic loads or static assemblies, the Heavy Hex Structural Nut delivers unmatched holding power, reducing the risk of failure and minimizing maintenance needs. Its versatility makes it suitable for a wide range of industries, from automotive to aerospace, where every component must perform flawlessly.

  • Material: Carbon Steel, Alloy Steel, or Stainless Steel
  • Standards: ASTM A563, ASME B18.2.2
  • Thread Size: Ranges from 1/2" to 4" in diameter
  • Finish: Plain, Hot-Dip Galvanized, or Zinc-Plated
  • Tensile Strength: Minimum 150 ksi for Grade DH
  • Hardness: Brinell hardness typically between 228 and 302 HB
Parameter Details
Nominal Size (inches) 1/2" to 4"
Width Across Flats Larger than standard hex nuts for better wrench grip
Height Varies by size; typically thicker for added strength
Thread Pitch Coarse or fine threads as per application needs
Proof Load Up to 120,000 psi depending on grade
Temperature Range -50°F to +400°F for standard materials

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