Powerful and reliable, our Hex Head Cap Screws Grade 8 Steel Plain (USA Made) 5/16-18 x 1 3/4 is designed for high-load assemblies where strength matters. Crafted from Grade 8 steel and finished plain (uncoated), these screws deliver excellent tensile strength and toughness for demanding applications in machinery, automotive, and construction.

Key features

• Grade 8 steel for high-strength performance under shock and heavy loads.
• Plain (uncoated) finish for versatile use in a variety of environments.
• Hex head design for quick driving with standard wrenches or sockets.
• Thread size: 5/16-18 UNC for broad compatibility with common fasteners.
• Length: 1 3/4 inches to suit a range of through- or blind-hole applications.
• USA-made quality you can trust.

Applications

Ideal for heavy-duty assemblies in equipment, automotive components, machinery frames, and outdoor or indoor projects where a strong, reliable fastener is required. Pair with matching nuts and washers as needed for secure, long-lasting joins.

Note: Plain steel is not a plated or corrosion-resistant finish. For environments requiring enhanced protection, consider applying a suitable coating or selecting a corrosion-resistant variant.