Hex Head Cap Screws Grade 8 Steel Plain 5/16-18 x 6 are high-strength fasteners engineered for demanding mechanical and industrial applications. Crafted from Grade 8 steel and finished plain (unplated), these screws deliver durable performance without coatings that can wear off in tough environments.

Designed with a hex head for easy drive and a 5/16-18 UNC thread, they provide dependable clamping strength over a 6 inch length for versatile mounting options.

• Material: Grade 8 steel for high tensile strength
• Finish: Plain (unplated) steel
• Head type: Hex head for standard drive tools
• Thread: 5/16-18 UNC
• Length: 6 inches
• Application: Suitable for machinery, automotive, equipment, and general heavy-duty assemblies
• Compatibility: Compatible with standard 5/16-18 nuts and tapped holes

For optimal performance, pair with appropriate nuts and, if required, lock washers to prevent loosening in high-vibration environments.