5/16"-18 x 1/2" Socket Head Cap Screw, Alloy Steel, Thermal Black Oxide (USA)

This USA‑made 5/16"-18 x 1/2" socket head cap screw is manufactured from high‑strength alloy steel to deliver reliable fastening in machinery, tooling, equipment assembly, and precision industrial applications. The thermal black oxide finish provides enhanced corrosion resistance, reduced glare, and improved lubricity while maintaining exact dimensional tolerances for smooth installation.Designed with a hex socket drive for secure torque transfer and a vibration‑resistant fit, this short‑length fastener is ideal for compact assemblies and applications requiring high strength in a small footprint. Its American‑made construction ensures consistent threading, excellent durability, and dependable performance in demanding environments.