USA Socket Cap Screw, Thermal Black Oxide, Alloy (Inch)

Our USA‑manufactured alloy steel socket cap screws with a thermal black oxide finish are engineered for high‑strength fastening in precision, industrial, and mechanical applications. Produced from premium alloy steel, these screws deliver exceptional tensile strength, durability, and resistance to wear, making them ideal for machinery, tooling, equipment assembly, robotics, and structural components that demand reliable, compact fastening.

The thermal black oxide treatment provides a uniform, corrosion‑resistant surface that enhances lubricity, reduces glare, and improves overall appearance without altering the dimensions of the fastener. Designed with a hex socket drive for superior torque application and secure installation, these American‑made socket cap screws meet strict performance and consistency standards for demanding environments.