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Sustainable 9/16-12 X 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Complete Set [oTma63Cn]

$37.99 $121.99 -69%

High-Quality Yellow Zinc Plated Hex Cap Screws Introducing our premium line of 9/16-12 x 6 Grade 8 Hex Cap Screws, designed for exceptional durability and reliability. These screws are manufactured in the USA using high-quality medium carbon alloy st

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Sustainable 9/16-12 X 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) Complete Set [oTma63Cn]

High-Quality Yellow Zinc Plated Hex Cap Screws

Introducing our premium line of 9/16-12 x 6 Grade 8 Hex Cap Screws, designed for exceptional durability and reliability. These screws are manufactured in the USA using high-quality medium carbon alloy steel, ensuring superior strength and performance. With their yellow zinc plated finish, they offer excellent corrosion resistance, making them ideal for a wide range of applications.

Robust Specifications and Technical Details

Our Grade 8 hex cap screws meet or exceed SAE J429 Grade 8 specifications, providing consistent quality and reliability. Available in diameters from 1/4 to 1 1/2 inches, these screws are designed to withstand heavy-duty applications. For diameters over 1 1/2 inches, they meet or exceed ASTM A354 Grade BD standards, ensuring the highest level of performance. All materials are manufactured with rolled threads for enhanced grip and durability. The yellow zinc plated finish meets or exceeds ASTM F1941 standards, ensuring long-lasting protection against corrosion.

Practical Applications and Benefits

These Grade 8 hex cap screws are perfect for various construction, automotive, and industrial applications. Their exceptional tensile strength and hardness make them suitable for heavy-duty fastening tasks. Typical hardness ranges from HRC 33-39 for diameters 1/4 to 2 1/2 inches, and from HRC 31-39 for diameters over 2 1/2 inches. With a minimum tensile strength of 150,000 psi for diameters 1/4 to 2 1/2 inches and 140,000 psi for diameters over 2 1/2 inches, these screws are built to last. Whether you're working on a home project, automotive repair, or industrial machinery, our yellow zinc plated hex cap screws are the perfect choice for ensuring a secure and lasting connection.

What Our Customers Say

January 16, 2026

Absolutely no complaints!

Top quality and works perfectly.

- Forrest W..

January 16, 2026

Absolutely no complaints!

Great item! Highly recommended.

- Frank Z..

January 16, 2026

Absolutely no complaints!

A really nice product. Thanks.

- Annie Q..

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