5/16"-18 x 3" Stainless Steel 316 Hex Cap Screw, Full Thread, UNC Coarse

Manufactured from Type 316 stainless steel, the 5/16"-18 x 3" UNC coarse‑thread hex cap screw is designed for extended‑length fastening applications where superior corrosion resistance and dependable strength are required. The full‑thread construction ensures complete thread engagement along the entire shank, providing consistent clamping force and secure joint integrity in thicker components or multi‑layer assemblies. A standard hex head allows reliable torque application using common hand tools, supporting precise and repeatable installation. Frequently specified for marine hardware, chemical processing equipment, food‑grade systems, and outdoor industrial assemblies, this fastener delivers long service life and stable performance in environments exposed to moisture, chemicals, and corrosive conditions.