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Black Friday Doorbuster 3/8-16 Serrated Flange Hex Lock Nuts Case Hardened Hr15n 78/90 Zinc Yellow And Bake - Today Only [4JGBbQFx]

$35.99 $115.99 -69%

High-Quality Serrated Flange Hex Lock Nuts Introducing our premium 3/8-16 Serrated Flange Hex Lock Nuts, designed for maximum security and durability. These nuts are crafted from case-hardened HR15N material, ensuring exceptional strength and resista

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High-Quality Serrated Flange Hex Lock Nuts

Introducing our premium 3/8-16 Serrated Flange Hex Lock Nuts, designed for maximum security and durability. These nuts are crafted from case-hardened HR15N material, ensuring exceptional strength and resistance to wear. With a 78/90 zinc yellow finish and bake treatment, they offer excellent corrosion resistance and a vibrant, long-lasting appearance.

Key Product Features

Superior Strength: The case-hardened HR15N material provides unmatched strength, making these nuts ideal for heavy-duty applications.
  • Enhanced Security: The serrated flange design offers increased grip, preventing loosening due to vibration or movement.
  • Corrosion Resistance: The 78/90 zinc yellow finish and bake treatment offer excellent resistance to corrosion, ensuring long-lasting performance in various environments.
These nuts are a reliable choice for any project where strength, durability, and aesthetics are a priority.

Practical Applications and Benefits

Whether you're working on automotive, industrial, or construction projects, our 3/8-16 Serrated Flange Hex Lock Nuts are the perfect solution. Their robust design and corrosion-resistant finish make them suitable for outdoor and indoor applications alike.
  • Automotive: Securely fasten engine components, exhaust systems, and more.
  • Industrial: Ideal for machinery assembly, equipment installation, and more.
  • Construction: Use for structural connections, anchoring, and more.
With a box quantity of 1,000 and a weight of 18.2 lbs., these nuts are not only convenient but also cost-effective for bulk purchases.

What Our Customers Say

December 29, 2025

Absolutely no complaints!

It’s a very practical and no-frills tool.

- PracticalPete.

December 29, 2025

Absolutely no complaints!

This is a well-thought-out product.

- Larry Rodriguez.

December 29, 2025

Absolutely no complaints!

Absolutely thrilled with this. It's perfect.

- Madison R..

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