Engineered for heavy-duty fastening, our Hex Head Cap Screws Grade 8 Steel Plain (USA Made) deliver maximum strength in demanding applications. Sized at 3/8-24 UNC with a 4-inch length, these high-performance fasteners provide robust engagement for automotive, industrial, and equipment assemblies. The plain steel finish offers versatility and predictable performance in a wide range of environments.

Key features

• Material: SAE Grade 8 steel for exceptional tensile strength and durability under load.
• Finish: Plain (uncoated) steel, ideal for customization or subsequent coating in your process.
• Size and thread: 3/8″ diameter with 24 threads per inch (UNC) for secure, standardized fastening.
• Length: 4 inches of engagement for deeper joints and reliable hold.
• Origin: Proudly manufactured in the USA for consistent quality control.

Specifications

• Type: Hex Head Cap Screw
• Grade: 8 (high-strength steel)
• Material: Steel
• Finish: Plain
• Diameter: 3/8 inch
• Thread: 24 TPI UNC
• Length: 4 inches
• Made in: USA

Applications

Ideal for heavy machinery, automotive assemblies, and industrial equipment where high-strength fasteners are required. The plain finish allows easy integration with existing coatings or examinations for corrosion protection as part of your broader engineering solution.

Installation tips

Ensure proper torque and thread engagement for peak performance. Use appropriate lubrication and verify clearances before tightening to avoid galling on Grade 8 steel. For outdoor or humidity-prone environments, consider applying a protective coating or plating to extend life based on your project needs.