4-40 x 1/2 316 Stainless Socket Head Cap Screw helps solve fastening problems in wet, washdown, or chloride-bearing environments where standard carbon steel hardware is unsuitable. 316 stainless steel is commonly chosen for better chloride resistance than general-purpose stainless grades. The drive style is useful when repeated maintenance requires controlled removal and reinstallation. Typical placements include robotic tooling, automation cells, and assembly stations where stainless corrosion resistance and internal-hex access are practical. Manufacturing facilities can standardize this size where corrosion-resistant socket-drive hardware is required. Technical Highlights: Material: 316 Stainless Steel; Thread: 4-40 UNC; Length: 1/2 in.; Nominal Body Diameter: 0.112 in.; Head Diameter: 0.183 in. max / 0.176 in. min; Head Height: 0.112 in. max / 0.108 in. min; Hex Key Size: 3/32; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.