Hex Head Cap Screws Grade 8 Steel Zinc Yellow Plated (USA Made) 5/16-18X4 are high-strength fasteners engineered for demanding assemblies where reliability and durability matter.

Manufactured from Grade 8 steel, these hex head cap screws deliver exceptional tensile strength and fatigue resistance. The zinc yellow plating provides a durable corrosion-resistant finish, helping protect against rust and wear in challenging environments.

Key specifications:

• Size: 5/16-18 x 4
• Material: Grade 8 steel
• Finish: Zinc yellow plated
• Head: Hex
• Origin: USA made

Applications: Ideal for automotive, industrial machinery, construction, and other heavy-duty assemblies where a secure, long-lasting connection is required.