0-80 x 5/16 18-8 Stainless Steel Socket Head Cap Screw is used where drawings call for a socket head cap screw that combines stainless construction with a cylindrical head profile. 18-8 stainless is a practical material choice for equipment that needs general corrosion resistance in everyday industrial service. The drive style supports controlled removal and reinstallation during maintenance repair or equipment adjustment. Typical placements include machine building, tooling, and precision assemblies where general corrosion resistance and internal-hex access are useful. Maintenance managers can match the thread, length, material, and head geometry already called out on service documentation. Technical Highlights: Material: 18-8 Stainless Steel; Thread: 0-80 UNF; Length: 5/16 in.; Nominal Body Diameter: 0.060 in.; Head Diameter: 0.096 in. max / 0.091 in. min; Head Height: 0.060 in. max / 0.057 in. min; Hex Key Size: 0.050; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.