Hex Head Cap Screws Grade 5 Steel Plain (USA Made) 3/8-16 x 2 1/4 are built for tough assemblies where strength and durability matter. Made from Grade 5 carbon steel with a plain (uncoated) finish, these screws deliver dependable performance for a wide range of applications without plating.

Why choose these hex head cap screws

• Material and finish: Grade 5 steel with a plain finish for strong, reliable performance without coating.
• Size and thread: 3/8-16 UNC threads with a 2 1/4 inch grip length.
• Head type: Hex head for easy turning with standard wrenches or sockets.
• Origin: USA made, ensuring consistent quality and supply.
• Applications: Ideal for general purpose, automotive, machinery, and heavy equipment assemblies requiring high strength.

Specifications

• Diameter: 3/8 in
• Thread pitch: 16 threads per inch (UNC)
• Length: 2 1/4 in
• Material: Grade 5 steel
• Finish: Plain (uncoated)
• Head style: Hex head cap screw

For best results, pair these screws with compatible nuts and threaded or tapped holes designed for 3/8-16 hardware. These USA-made screws offer dependable strength for demanding projects and can be used in a wide range of settings where robust fasteners are required.