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Most Wishlisted 5/8-18 X 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (80) - Ends Soon [i82wMsTg]

$56.99 $182.99 -69%

High-Performance 5/8-18 Hex Cap ScrewsIntroducing the L9® High Tensile Strength Hex Cap Screws, the go-to fastening solution for high-stress, severe service environments. Engineered with exceptional precision, these screws offer unmatched mechanical

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Most Wishlisted 5/8-18 X 7 L9 Hex Cap Screw Yellow Zinc Plated Domestic Usa (80) - Ends Soon [i82wMsTg]

High-Performance 5/8-18 Hex Cap Screws

Introducing the L9® High Tensile Strength Hex Cap Screws, the go-to fastening solution for high-stress, severe service environments. Engineered with exceptional precision, these screws offer unmatched mechanical strength, making them ideal for demanding applications where durability and reliability are paramount.
  • Superior Strength: Constructed from high-grade alloy steel AISI 8640H, these screws boast an impressive minimum tensile strength of 180,000 psi.
  • Advanced Design: Our special features control torque-tension characteristics, ensuring high clamp loads are developed when using proper tightening methods.

Robust Properties and Specifications

Brighton Best is committed to manufacturing the highest quality bolting solutions, and the L9® Hex Cap Screws are no exception. Each screw undergoes rigorous testing to meet ASTM F606 standards, ensuring hardness, classification, fit, and elongation are up to the highest industry benchmarks. The screws are then plated with yellow zinc, offering corrosion resistance and durability, with a minimum coating thickness of .0002" according to ASTM B633 Type 2 Class 5 SCI standards.
  • Quality Assurance: Brighton Best adheres to stringent quality control measures, guaranteeing that every L9® screw meets or exceeds industry standards.
  • USA Manufacturing: Fabricated entirely in the USA, these screws are a testament to American ingenuity and craftsmanship.

Practical Applications and Target Markets

The L9® High Tensile Strength Hex Cap Screws are versatile and suitable for a wide range of industries, from automotive to aerospace, construction, and heavy machinery. Their robust design and high-performance features make them ideal for environments where strength, reliability, and durability are essential.
  • Automotive Industry: Enhance the performance and lifespan of your vehicle with these high-tensile screws.
  • Construction Projects: Trust in L9® screws for the structural integrity of your construction projects.
These screws are the ultimate choice for professionals seeking excellence in fastening solutions.

What Our Customers Say

January 25, 2026

Absolutely no complaints!

This is a really great and a very, very, very, very solid product.

- Lleu F..

January 25, 2026

Absolutely no complaints!

This is a fantastic and an incredibly effective tool.

- Teyrnon C..

January 25, 2026

Absolutely no complaints!

A great product. And very, very, very, very, very, very, very, very good.

- Hafgan Z..

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