Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/8-11 x 3-1/2 are high-strength fasteners designed for demanding industrial, automotive, and machinery applications.

Made from Grade 8 steel for exceptional tensile strength, these screws pair a robust hex head with a plain finish that ensures reliable performance in indoor or controlled environments. The USA-made construction adds assurance of quality and consistent manufacturing standards.

Specifications

• Size: 5/8-11 x 3-1/2 inches
• Thread: 5/8-11
• Material: Grade 8 steel
• Finish: Plain
• Head style: Hex head cap screw
• Origin: USA-made

Ideal for securing heavy components, machinery frames, and equipment assemblies where maximum clamp power and reliability are essential. Pair with compatible nuts and washers to ensure a secure fit. Note: Plain steel is best suited for indoor or protected environments to minimize corrosion risk.