Hex Head Cap Screws Grade 5 steel, plain finish, with fine-thread design in size 9/16-18 x 2-1/4. This high-strength fastener is built to withstand demanding environments in automotive, industrial machinery, and equipment assemblies.

Made from Grade 5 steel, these hex head cap screws deliver dependable tensile strength and fatigue resistance. The plain (uncoated) finish provides a clean mating surface and flexibility for future coatings or treatments as part of your build process.

• Size and thread: 9/16 in diameter, 18 threads per inch (TPI), 2-1/4 in length; fine-thread variant for precise clamping
• Material: Grade 5 steel for high-strength fastening
• Finish: Plain (uncoated) steel
• Head type: Hex head for broad contact area and easy driving with standard wrenches
• Applications: Ideal for automotive, machinery, equipment assemblies where strong, reliable fasteners are required

Note: For best results, ensure compatibility with nuts or tapped holes of matching grade and thread. Consider lubrication to ease installation and prevent galling on plain steel.