Enhance the durability of your projects with our Button Head Socket Cap Screw. Crafted from high-grade steel and featuring a Thermal Black Oxide finish, this screw guarantees strength and resilience in any application. Compliant with ASME B18.3 standards, it ensures precision and quality. With a 5/16-18 thread size and 3.5-inch length, it's perfect for a variety of tasks. The 10.9 material grade further reinforces its reliability. Utilizing a Hex Socket drive type, installation is efficient and secure. Rest assured, this screw is not only high-performing but also environmentally friendly, meeting RoHS compliance standards. Elevate your work with this essential hardware component.