1"-8 x 3" Socket Head Cap Screw, Alloy Steel, Thermal Black Oxide (USA)

This USA‑made 1"-8 x 3" socket head cap screw is engineered from premium high‑strength alloy steel to deliver exceptional performance in heavy machinery, structural steel construction, large equipment fabrication, and extreme‑duty industrial applications. The thermal black oxide finish enhances corrosion resistance, increases lubricity, and provides a smooth, uniform, low‑glare appearance while maintaining precise dimensional accuracy.Built with a heavy‑duty hex socket drive for secure torque transfer and a vibration‑resistant fit, this extended‑length fastener is ideal for high‑load assemblies requiring maximum strength, reliable alignment, and long‑term durability. Its American‑made construction ensures clean, consistent threading, excellent mechanical integrity, and dependable service under the harshest operating conditions.