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Masterpiece 5/16-18 X 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic Usa (100) [limited Qty] [KYlGSXR8]

$29.99 $95.99 -69%

5/16-18 Hex Cap Screws - Grade 5 Introducing our premium 5/16-18 x 2 3/4 Grade 5 Hex Cap Screws, a top choice for professionals and DIY enthusiasts alike. These screws are manufactured in the USA from high-quality medium carbon steel, ensuring superi

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Masterpiece 5/16-18 X 2 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic Usa (100) [limited Qty] [KYlGSXR8]

5/16-18 Hex Cap Screws - Grade 5

Introducing our premium 5/16-18 x 2 3/4 Grade 5 Hex Cap Screws, a top choice for professionals and DIY enthusiasts alike. These screws are manufactured in the USA from high-quality medium carbon steel, ensuring superior strength and durability. With a zinc plated finish, they offer excellent corrosion resistance, making them ideal for a wide range of applications. Whether you're working on automotive projects, home renovations, or industrial assembly, these Grade 5 Hex Cap Screws are up to the task.

Technical Specifications

Our Grade 5 Hex Cap Screws meet or exceed SAE J429 Grade 5 specifications, guaranteeing top-notch quality and performance. Each screw features rolled threads for increased strength and reduced likelihood of stripping. The typical hardness on diameters from 1/4 to 1 inch is HRC 25-34, while diameters over 1 inch to 1 1/2 inch have a hardness ranging from HRC 19-30. With a minimum tensile strength of 120,000 psi for diameters 1/4 to 1 inch and 105,000 psi for diameters over 1 inch to 1 1/2 inch, these screws offer exceptional holding power and reliability.
  • Quality Material: Medium carbon steel for superior strength and durability.
  • Corrosion Resistance: Zinc plated finish to prevent rust and corrosion.

Practical Applications and Benefits

Whether you're a mechanic, a contractor, or a hobbyist, these Grade 5 Hex Cap Screws are a versatile tool for any project. They are perfect for securing metal components, assembling furniture, and more. The following scenarios highlight the benefits of using these screws:
  • Automotive Projects: Ideal for repairing and maintaining vehicles, providing a strong hold in various applications.
  • Home Renovations: A reliable choice for securing structural elements, cabinets, and fixtures in home improvement projects.
  • Industrial Assembly: Suitable for heavy-duty applications, ensuring a secure and long-lasting connection.
With 100 screws per pack, these Grade 5 Hex Cap Screws are a cost-effective solution for all your assembly needs.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

I'm a very happy customer.

- Declan D..

January 17, 2026

Absolutely no complaints!

I'm so happy. It's a great product.

- Darlene Q..

January 17, 2026

Absolutely no complaints!

I'm pleased with the quality.

- Bridget D..

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