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Christmas Sale Jfast 31nrbz - 5/16-18 Serrated Flange Hex Lock Nuts Case Hardened Hr15n 78/90 Black Zinc And Bake, Case Quantity: 1,500 Flash Sale: 30% Off [W0ChslnN]

$48.99 $156.99 -69%

High-Quality Hex Flange Locknuts The JFAST 31NRBZ - 5/16-18 Serrated Flange Hex Lock Nuts are designed for superior performance and durability. These lock nuts are crafted from case hardened HR15N steel, ensuring they can withstand demanding applicat

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High-Quality Hex Flange Locknuts

The JFAST 31NRBZ - 5/16-18 Serrated Flange Hex Lock Nuts are designed for superior performance and durability. These lock nuts are crafted from case hardened HR15N steel, ensuring they can withstand demanding applications. With a black zinc and bake finish, they offer excellent corrosion resistance and a sleek appearance. The 5/16-18 size makes them versatile for a wide range of fastening needs.
  • Case Hardened Steel for increased strength and durability.
  • Black Zinc Finish for corrosion resistance and aesthetic appeal.

Robust Specifications and Technical Details

The JFAST 31NRBZ lock nuts are engineered with meticulous attention to detail. They feature a serrated flange design for better grip and a hexagonal shape for easy installation and removal. The black zinc finish provides an additional layer of protection against environmental factors, making them suitable for both indoor and outdoor applications. With a case quantity of 1,500, these lock nuts are ideal for bulk orders or large-scale projects.
  • Serrated Flange Design for enhanced grip and stability.
  • Black Zinc and Bake Finish for superior corrosion resistance.

Practical Applications and Target Audience

The JFAST 31NRBZ - 5/16-18 Serrated Flange Hex Lock Nuts are a perfect choice for various industries and applications. Whether you're working on automotive, construction, or industrial projects, these lock nuts offer reliable performance. Their versatility makes them suitable for both DIY enthusiasts and professional engineers. With their durable construction and corrosion-resistant finish, these lock nuts are a wise investment for anyone in need of high-quality fastening solutions.
  • Industries: Automotive, construction, industrial, and DIY projects.
  • Target Audience: DIY enthusiasts, engineers, and professionals.

What Our Customers Say

December 28, 2025

Absolutely no complaints!

It's a great product, and I truly do love it.

- Paula R..

December 28, 2025

Absolutely no complaints!

This is a fine tool that works just perfectly.

- Leonardo B..

December 28, 2025

Absolutely no complaints!

It's a very good, exceptionally high-quality product.

- Logan E..

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