Discover 9/16-18 X 4 1/2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic Usa (100) Collection [IDbswcyN]

High-Quality Hex Cap Screws

Introducing our premium 9/16-18 x 4 1/2 Grade 8 Hex Cap Screws, designed for superior strength and durability. These screws are crafted in the USA from medium carbon alloy steel, ensuring the highest quality and reliability. With their yellow zinc plated finish, they offer excellent corrosion resistance, making them ideal for a wide range of applications.

Robust Specifications and Features

Our Grade 8 Hex Cap Screws meet or exceed SAE J429 Grade 8 specifications, providing exceptional performance in diameters ranging from 1/4 to 1 1/2 inches. For diameters over 1 1/2 inches, they meet or exceed ASTM A354 Grade BD standards. Each screw is manufactured with rolled threads for increased strength and reduced thread wear. The yellow zinc plated finish meets or exceeds ASTM F1941 standards, ensuring long-lasting protection against corrosion.

Unmatched Strength and Versatility

Experience the strength and versatility of our Grade 8 Hex Cap Screws. With 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, these screws offer superior tensile strength. For diameters 1/4 to 2 1/2 inches, the minimum tensile strength is 150,000 psi, while diameters over 2 1/2 inches meet a minimum of 140,000 psi. This ensures that your projects are supported by the most robust and reliable fasteners available.

• Domestic USA Manufacturing: All screws are proudly made in the USA, guaranteeing quality and craftsmanship.
• Corrosion Resistance: Yellow zinc plated finish for enhanced durability and resistance to environmental factors.