Hex nuts | Imperial | Fine thread | Yellow zinc | Grade 8



Need a special quotation ? please contact us here
1 People watching this product now!

Fast Shipping

20k products

Premium service


Grade 8 fasteners are renowned for their exceptional strength and durability, making them the preferred choice for high-stress applications in a variety of industrial and construction settings. These fasteners are manufactured from high-quality alloy steel and are heat-treated to achieve a higher hardness and tensile strength, ensuring they can withstand heavy loads and harsh conditions.

Key Features and Benefits

  • High Strength and Durability: Grade 8 fasteners are designed to offer superior strength compared to lower-grade fasteners. They possess a minimum tensile strength of 150,000 psi, making them suitable for demanding applications where reliability and performance are crucial.
  • Heat Treatment: The heat treatment process enhances the mechanical properties of Grade 8 fasteners, increasing their hardness and resistance to wear and tear. This process ensures that the fasteners maintain their integrity under high-stress conditions.
  • Corrosion Resistance: Many Grade 8 fasteners are available with various coatings, such as yellow zinc plating, which provides additional protection against corrosion. This makes them ideal for use in environments where moisture and other corrosive elements are present.
  • Precision Engineering: Manufactured to precise specifications, Grade 8 fasteners offer excellent fit and performance. The fine threading on these fasteners allows for secure and tight assembly, reducing the risk of loosening under vibration and load.


Grade 8 fasteners are commonly used in applications that require high strength and reliability. Some of the typical applications include:

  • Automotive Industry: Used in critical components such as engine assembly, suspension systems, and drive trains where high tensile strength is essential.
  • Construction: Employed in heavy-duty structural connections, including steel frameworks, bridges, and heavy machinery, ensuring stability and safety.
  • Agriculture: Integral in the assembly of agricultural equipment and machinery that operate under rigorous conditions, providing dependable performance.
  • Aerospace: Used in aerospace applications where both weight and strength are critical factors, ensuring secure connections in aircraft components.


  • Material: Alloy Steel
  • Heat Treatment: Heat Treated for Enhanced Strength
  • Tensile Strength: Minimum 150,000 psi
  • Coating Options: Yellow Zinc, Phosphate, and Oil, among others
  • Threading: Fine and Coarse Threads Available

Why Choose Grade 8 Fasteners?

Choosing Grade 8 fasteners ensures that your projects are built to last. These fasteners provide unmatched strength and durability, making them a reliable choice for any high-stress application. Whether you are constructing a high-rise building, assembling a heavy-duty vehicle, or maintaining industrial machinery, Grade 8 fasteners will meet and exceed your expectations.

Invest in Grade 8 fasteners for peace of mind, knowing that you are using top-of-the-line components that offer the highest level of performance and reliability.

Additional information

0.0074 kg



Drive Style











12 , 14 , 16 , 18 , 20 , 24 , 28