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Mega Sale 5/16-18 X 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (250) - Going Fast [kB506icQ]

$58.99 $188.99 -69%

Quality Yellow Zinc Plated Hex Cap Screws Experience the reliability and durability of our 5/16-18 x 6 Grade 8 Hex Cap Screws with Yellow Zinc Plating. These high-quality screws are meticulously crafted in the USA, ensuring the best in domestic manuf

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Mega Sale 5/16-18 X 6 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (250) - Going Fast [kB506icQ]

Quality Yellow Zinc Plated Hex Cap Screws

Experience the reliability and durability of our 5/16-18 x 6 Grade 8 Hex Cap Screws with Yellow Zinc Plating. These high-quality screws are meticulously crafted in the USA, ensuring the best in domestic manufacturing standards. With a robust tensile strength and superior hardness, these screws are designed to withstand demanding applications.

Superior Material and Specifications

Our Grade 8 Hex Cap Screws are made from medium carbon alloy steel, meeting or exceeding SAE J429 Grade 8 specifications for diameters 1/4 to 1 1/2 inches. For diameters over 1 1/2 inches, these screws meet or exceed ASTM A354 Grade BD. This means you're getting a product that not only meets but exceeds industry standards.
  • Domestic USA Manufacturing
  • Compliance with SAE and ASTM Standards

Enhanced Durability and Performance

With rolled threads and yellow zinc plating, our screws offer exceptional corrosion resistance and durability. The typical hardness on diameters 1/4 to 2 1/2 inches is HRC 33-39, ensuring long-lasting performance. For diameters over 2 1/2 inches, the hardness ranges from HRC 31-39, providing a strong and reliable solution. Tensile strength is a minimum of 150,000 psi for diameters 1/4 to 2 1/2 inches and 140,000 psi for diameters over 2 1/2 inches.
  • Yellow Zinc Plating for Corrosion Resistance
  • Hardness Range: HRC 31-39
These screws are the ideal choice for a variety of applications, where strength and reliability are paramount.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

The build is excellent and the product is incredibly easy to use.

- Jaxon Z..

January 17, 2026

Absolutely no complaints!

The interface is clean, simple, and very responsive.

- Oakley P..

January 17, 2026

Absolutely no complaints!

The quality is superb and the functionality is perfect.

- Emerie G..

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