5/16"-18 x 2‑1/4" Stainless Steel 316 Hex Cap Screw, Full Thread, UNC Coarse

Manufactured from Type 316 stainless steel, the 5/16"-18 x 2‑1/4" UNC coarse‑thread hex cap screw offers excellent corrosion resistance and reliable fastening performance for applications requiring additional grip length. The full‑thread configuration provides complete thread engagement along the entire shank, supporting uniform clamping force and secure joint integrity in thicker or stacked assemblies. A standard hex head allows consistent torque application with common hand tools, making installation efficient and repeatable. Frequently used in marine hardware, chemical processing equipment, food‑grade systems, and outdoor industrial assemblies, this fastener delivers dependable strength and long service life in environments exposed to moisture, chemicals, and corrosive conditions.