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SKU: HNA563A-516

5/16"-18 Conquest Heavy Hex Nut, A563 Grade A - Plain Finish

5/16"-18 Conquest Heavy Hex Nut, A563 Grade A - Plain Finish

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Ships Jul 22 when you order now
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This Hex Nut is a high quality and versatile fastener engineered for superior strength and durability. These hexagonal fasteners are made from carbon steel and are ideal for industrial and commercial applications as well as DIY projects to pair with bolts, threaded rod, or other connections where hex nuts are needed.

This hex nut has coarse threading with 18 TPI (threads per inch) and a Plain finish. The 5/16" diameter is intended for use with other threaded items matching that dimension to ensure compatibility and durability for various applications.

A563 Grade A hex nuts are made from medium carbon steel, designed for general-purpose, lower-stress applications compared to higher-grade nuts like home construction or light-duty machinary.


  • General-Purpose Use: Ideal for general construction, low-strength bolting assemblies, light-duty machinary, or residential projects.
  • Material: Made from carbon steel with a Plain finish, providing a budget-friendly option.
  • Standardized: Conforms to ASTM A563 standards, ensuring reliability and consistency.
  • For Use With: Hex Bolts, A307 Threaded Rod, Grade 55 Threaded Rod, and General Purpose Threaded Rod.

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California Residents: WARNING


Material: Carbon Steel
Wrench size: 9/16"
Thread type: Coarse
Threads per inch: 18
Thickness: Basic: 19/64" Max: 0.314" Min: 0.280"
Quantity: 1
Finish: Plain
Diameter: 5/16"
Manufacturer name: Conquest Fasteners
Type: A563 Grade A
Product Guide: View Spec Sheet
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