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Heavy-duty 9/16-18 X 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (200) For Women [J8cZjXKf]

$44.99 $143.99 -69%

Superior Strength Hex Cap ScrewsIntroducing the L9® High Tensile Strength Hex Cap Screws, the ultimate choice for applications demanding exceptional durability and reliability. These screws are designed for use in high-stress, severe service environm

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Heavy-duty 9/16-18 X 3 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (200) For Women [J8cZjXKf]

Superior Strength Hex Cap Screws

Introducing the L9® High Tensile Strength Hex Cap Screws, the ultimate choice for applications demanding exceptional durability and reliability. These screws are designed for use in high-stress, severe service environments, where their superior strength and robustness make them the ideal solution. The L9® line stands out as the highest mechanical strength off-the-shelf fastening system available, offering precise control over torque-tension characteristics to develop high clamp loads. Brighton Best is proud to manufacture these superior screws from AISI alloy steels, ensuring the highest quality and performance.

Key Product Properties

Experience the unparalleled quality of the L9® Hex Cap Screws, crafted from high-grade alloy steel AISI 8640H. These screws are produced using state-of-the-art equipment right here in the USA, guaranteeing exceptional craftsmanship and precision. Each screw is rigorously tested to meet ASTM F606 standards, ensuring hardness, classification, fit, and elongation meet the highest industry standards. The yellow zinc plating, with a minimum thickness of .0002", provides excellent corrosion resistance and durability. With a minimum tensile strength of 180,000 psi, these screws are built to withstand the most demanding conditions.

Practical Applications and Benefits

Whether you're working on a construction project, automotive repairs, or any other application that requires a fastener with unmatched strength, the L9® Hex Cap Screws are the perfect choice. Their exceptional tensile strength and corrosion resistance make them ideal for use in a wide range of industries, including aerospace, marine, and heavy machinery. With their reliable performance and durable construction, these screws provide peace of mind that your applications will perform under the most challenging conditions. Don't settle for anything less than the best – choose the L9® Hex Cap Screws for your next project.

What Our Customers Say

January 29, 2026

Absolutely no complaints!

It's a very good, exceptionally so great-built product.

- Dyfed P..

January 29, 2026

Absolutely no complaints!

It’s a very good, exceptionally and so very powerful tool.

- Goreu D..

January 29, 2026

Absolutely no complaints!

Very happy. I will be buying very, very many more.

- Pwyll N..

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