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Versatile 5/16-18 Serrated Flange Hex Lock Nuts Case Hardened Hr15n 78/90 Black Zinc And Bake - Today Only [mrodEcZR]

$55.99 $179.99 -69%

High-Quality Serrated Flange Hex Lock Nuts The 5/16-18 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake are designed to meet the highest standards of quality and reliability. These nuts are crafted from case-hardened HR15N

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High-Quality Serrated Flange Hex Lock Nuts

The 5/16-18 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake are designed to meet the highest standards of quality and reliability. These nuts are crafted from case-hardened HR15N steel, ensuring exceptional strength and durability. With their black zinc and bake finish, they offer excellent corrosion resistance, making them ideal for various industrial and mechanical applications. The serrated flange design provides additional security and resistance to loosening, ensuring that your fasteners stay tight under the toughest conditions.
  • Case Hardened HR15N Steel: For superior strength and durability.
  • Black Zinc and Bake Finish: Enhanced corrosion resistance.
  • Serrated Flange: Improved security and resistance to loosening.

Key Product Specifications

This product features a 5/16-18 thread size, making it versatile for a wide range of applications. The case-hardened HR15N steel ensures a tensile strength of up to 150,000 PSI, providing the stability and reliability required for heavy-duty tasks. The nuts come in a convenient case quantity of 1,500, weighing approximately 19.8 lbs. per box, ensuring efficient and cost-effective shipping. Detailed specifications and additional information can be found in the provided item specifications link.
  • Thread Size: 5/16-18
  • Tensile Strength: Up to 150,000 PSI
  • Box Qty: 1,500
  • Weight per Box: 19.8 lbs.

Applications and Benefits

These high-quality lock nuts are perfect for use in industrial machinery, automotive repairs, construction projects, and more. The robust construction and superior finish make them suitable for both indoor and outdoor environments. Their exceptional corrosion resistance and resistance to loosening make them ideal for applications where reliability is critical. Whether you are a professional mechanic, a DIY enthusiast, or an industrial engineer, these lock nuts will provide the peace of mind you need for your projects. Upgrade your fastening system today with these reliable and durable serrated flange hex lock nuts.
  • Industries: Industrial, Automotive, Construction, DIY
  • Environments: Indoor and Outdoor
  • Benefits: Enhanced reliability, ease of use, and cost-effectiveness

What Our Customers Say

December 28, 2025

Absolutely no complaints!

This is a really good and a very, very, very, very useful item.

- Elffin I..

December 28, 2025

Absolutely no complaints!

This is a great quality and a very, very, very useful item.

- Ronabwy N..

December 28, 2025

Absolutely no complaints!

This is a very polished and a very, very nice item.

- Llywelyn V..

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