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

This USA‑made 5/16"-18 x 1" socket head cap screw is crafted from high‑strength alloy steel for dependable fastening in machinery, tooling, equipment assembly, and other precision industrial applications. The thermal black oxide finish enhances corrosion resistance, improves lubricity, and delivers a smooth, low‑glare appearance without affecting the screw’s dimensional accuracy.Designed with a hex socket drive for superior torque transfer and a secure, vibration‑resistant fit, this fastener offers consistent, long‑lasting performance even in demanding environments. Its American‑made construction ensures clean, accurate threading and reliable durability for high‑performance assemblies.