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Heavy-duty 1/4-28 X 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Accessory [Les7N4F5]

$16.99 $54.99 -69%

Superior Quality Hex Cap Screws Introducing the Heavy-duty 1/4-28 X 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Accessory [Les7N4F5], a premium fastening solution designed for high stress and severe service environments. These screws are crafted with precision and ex

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Heavy-duty 1/4-28 X 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Accessory [Les7N4F5]

Superior Quality Hex Cap Screws

Introducing the Heavy-duty 1/4-28 X 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Accessory [Les7N4F5], a premium fastening solution designed for high stress and severe service environments. These screws are crafted with precision and excellence, offering unparalleled strength and durability. With their robust construction and high tensile strength, they are the ideal choice for demanding applications where reliability is paramount.

Key Product Features

The L9® High Tensile Strength Hex Cap Screws are engineered to provide the highest mechanical strength available off-the-shelf. Their special features, including optimized torque-tension characteristics, ensure the development of high clamp loads when using proper tightening methods. This results in a secure and long-lasting fastening solution. Here are some of the key features that set these screws apart:
  • Domestic USA Manufacturing: Brighton Best proudly manufactures these screws in the USA, ensuring quality and reliability.
  • High-Grade Material: Constructed from AISI 8640H high-grade alloy steel, these screws offer exceptional strength and durability.
  • Yellow Zinc Plating: The yellow zinc plating provides corrosion resistance and a polished finish, enhancing the lifespan of the screws.

Practical Applications

These L9® Hex Cap Screws are versatile and suitable for a wide range of applications, including industrial machinery, construction, and automotive. Their 180,000 psi minimum tensile strength and compliance with ASTM F606 standards for hardness, classification, fit, and elongation make them a reliable choice for critical fastening needs. With 100 screws per pack, these screws are perfect for bulk orders and frequent replacements, ensuring that you always have a quality solution on hand.

What Our Customers Say

January 20, 2026

Absolutely no complaints!

A great product. It's well worth the money.

- Gladys L..

January 20, 2026

Absolutely no complaints!

I'm impressed by how robust it feels.

- Valentina M..

January 20, 2026

Absolutely no complaints!

A great purchase. The quality is very evident.

- Theo T..

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