Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 3/8-16 x 7/8 designed for strength, reliability, and long life in heavy-duty assemblies.

These hex head cap screws are manufactured from Grade 8 steel and finished plain (uncoated) for versatile use in mechanical, automotive, and industrial applications. Made in the USA, they offer consistent performance and interchangeability with standard fasteners.

Key features

• Material: Grade 8 steel for high strength and impact resistance
• Finish: Plain (uncoated) surface suitable for painting or coating in-applications
• Head style: Hex head cap screw for secure driving with common wrenches
• Thread size: 3/8-16 UNC (coarse thread)
• Length: 7/8 inch
• Origin: USA Made

Applications

Ideal for heavy-duty equipment, machinery, automotive assemblies, and structural connections where high strength and reliable performance are required. The plain finish makes it easy to customize or coat to suit your project needs.

Why choose Grade 8 hex cap screws

• Exceptional tensile strength and durability for demanding applications
• Dependable grip under vibration when torqued with compatible nuts
• Interchangeable with standard 3/8-16 hardware for quick replacements

Specifications

• Grade: 8
• Material: Plain carbon steel
• Finish: Plain (uncoated)
• Head: Hex
• Thread: 3/8-16 UNC
• Length: 7/8 in
• Origin: USA Made

Tip: For best results, pair these screws with compatible nuts and washers as required by your application, and follow standard torque guidelines for Grade 8 hardware to avoid over-tightening or gouging the material.