Description
Our Hex Head Cap Screws Grade 5 Steel Plain finish (USA Made) 5/16-18 x 3 1/4 deliver high strength and dependable performance for a wide range of assemblies. These fasteners are ideal for machinery, automotive, and structural projects where a strong, clean, uncoated connection is required.
- Thread/Size: 5/16-18 standard coarse thread
- Length: 3 1/4" under the head
- Material & Finish: Grade 5 steel with a plain (uncoated) finish
- Head Type: Hex head for easy driving with a standard wrench or socket
- Origin: Made in the USA
- Typical Uses: Machinery, equipment, automotive assemblies, and other high-strength fastening needs
Why choose Grade 5 steel? These screws offer higher tensile strength than lower-grade options, delivering dependable performance under load. The plain finish keeps a clean appearance and allows on-site coatings or paint if required. For outdoor or corrosive environments, consider applying a suitable coating or selecting a plated version for enhanced corrosion resistance.
Add these hex head cap screws to your hardware kit and experience secure, durable fastening you can rely on.
Can We Help?
If you’re not sure that this product is right for you, give us a call!
800-222-0324