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Hot Sale 5/8-18 X 3 3/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Best Choice [FJskCcPX]

$45.99 $147.99 -69%

High-Quality Yellow Zinc Plated Hex Cap Screws Introducing our premium 5/8-18 x 3 3/4 Grade 8 Hex Cap Screws, designed for superior strength and durability. These screws are meticulously crafted in the USA from medium carbon alloy steel, ensuring the

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High-Quality Yellow Zinc Plated Hex Cap Screws

Introducing our premium 5/8-18 x 3 3/4 Grade 8 Hex Cap Screws, designed for superior strength and durability. These screws are meticulously crafted in the USA from medium carbon alloy steel, ensuring the highest quality and reliability. With their yellow zinc plating, these screws offer excellent corrosion resistance, making them ideal for a wide range of applications. Our screws are designed to meet or exceed industry standards, including SAE J429 Grade 8 specifications for diameters up to 1 1/2 inches and ASTM A354 Grade BD for diameters over 1 1/2 inches.

Robust Specifications and Technical Details

Experience the strength and precision of our Grade 8 Hex Cap Screws. Each screw features rolled threads for enhanced thread engagement and reduced installation torque. The yellow zinc plating not only provides corrosion resistance but also improves the screw's aesthetics. Our screws exhibit a typical hardness of HRC 33-39 for diameters 1/4 to 2 1/2 inches and HRC 31-39 for diameters over 2 1/2 inches. With a tensile strength of at least 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 withstand the most demanding conditions.
  • Corrosion Resistance: Yellow zinc plating offers excellent protection against environmental factors.
  • Strength and Durability: Grade 8 material ensures long-lasting performance.

Practical Applications and Benefits

Our 5/8-18 x 3 3/4 Grade 8 Hex Cap Screws are perfect for a variety of applications, from construction and manufacturing to home improvement projects. Their high tensile strength and corrosion resistance make them ideal for use in outdoor environments or in situations where durability is crucial. Whether you're assembling furniture, building structures, or working on mechanical equipment, these screws will provide the reliability you need. With a package of 100 screws, you have ample supply to meet your project requirements.
  • Industries: Suitable for construction, manufacturing, and home improvement.
  • Outdoor Use: Excellent corrosion resistance for outdoor applications.
Invest in our high-quality hex cap screws and experience the difference in performance and reliability.

What Our Customers Say

January 7, 2026

Absolutely no complaints!

A very satisfying purchase that I am genuinely proud to own.

- Proud_Owner_Penny.

January 7, 2026

Absolutely no complaints!

This is a product of exceptional merit.

- Elijah G..

January 7, 2026

Absolutely no complaints!

This purchase has brought me a lot of joy.

- Sophia C..

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