Premium Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 1/2-13 x 4-1/2 are engineered for high-strength fastener performance in demanding assemblies. Made in the USA, these screws feature a Grade 8 steel core and a plain finish for reliable, heavy-duty service.

Designed to maximize torque transfer and resist loosening under vibration, they are ideal for machinery, automotive, agricultural, and industrial equipment applications where secure fastening matters.

Key features

• Grade 8 steel delivers high tensile strength for strong, durable fastenings
• Plain finish provides a clean look and cost-effective option; suitable for indoor or protected environments
• 1/2-13 UNC coarse thread with 4-1/2 inch length for broad compatibility
• Hex head cap design allows for high torque transfer and easy installation with standard wrenches or sockets
• USA-made quality with strict manufacturing controls
• Compatible with standard 1/2-13 nuts and tapped holes
• Versatile across heavy equipment, construction, and industrial projects

Note: Plain steel is less corrosion-resistant than plated finishes; for outdoor or corrosive environments, apply a protective coating or choose a plated option.

Add these Grade 8 hex head screws to your cart for reliable performance and consistent results on every project.