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Award Winning 5/8-18 X 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Don't Overpay [zrfA3wWD]

$38.99 $124.99 -69%

Superior Hex Cap Screws for High-Performance Environments Introducing the 5/8-18 x 1 3/4 L9 Hex Cap Screw, a top-tier fastening solution designed for demanding applications. These screws are crafted with precision and engineered to withstand high str

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Award Winning 5/8-18 X 1 3/4 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (25) - Don't Overpay [zrfA3wWD]

Superior Hex Cap Screws for High-Performance Environments

Introducing the 5/8-18 x 1 3/4 L9 Hex Cap Screw, a top-tier fastening solution designed for demanding applications. These screws are crafted with precision and engineered to withstand high stress and severe service conditions. With their exceptional mechanical strength, they are the highest off-the-shelf fastening system available.
  • Domestic USA Manufacturing: Brighton Best proudly produces these screws domestically, ensuring the highest quality standards.
  • High Tensile Strength: Boasting a minimum tensile strength of 180,000 psi, these screws can handle the most rigorous conditions.

Robust Construction and Enhanced Performance

Constructed from high-grade AISI 8640H alloy steel, these L9® Hex Cap Screws are a testament to engineering excellence. The state-of-the-art manufacturing process in the USA guarantees superior quality and reliability. Each screw is rigorously tested to meet ASTM F606 standards for hardness, classification, fit, and elongation. The Yellow Zinc plating provides corrosion resistance and durability.
  • Advanced Plating: The yellow zinc plating is applied to a minimum thickness of .0002" for superior corrosion resistance.
  • ASTM B633 Type 2 Class 5 SCI: The plating meets the stringent requirements of this industry standard, ensuring long-lasting performance.

Practical Applications and Reliability

The 5/8-18 x 1 3/4 L9 Hex Cap Screw is ideal for use in high-stress environments where performance and reliability are paramount. Its ability to develop high clamp loads through controlled tightening methods makes it a perfect choice for severe service applications. Whether it's for industrial machinery, automotive components, or construction projects, these screws are designed to perform.
  • Severe Service Applications: Ideal for use in environments where strength and durability are critical.
  • Controlled Tightening Methods: Ensures consistent and reliable performance over time.

What Our Customers Say

January 29, 2026

Absolutely no complaints!

A really great find. I'm extremely happy.

- Jade X..

January 29, 2026

Absolutely no complaints!

A purchase that was money very well spent.

- Hayden J..

January 29, 2026

Absolutely no complaints!

An outstanding piece of tech. I'm very happy.

- Bruce A..

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