4-40 x 1 1/2 316 Stainless Socket Head Cap Screw provides a 316 stainless socket-drive fastener for production hardware exposed to water, humidity, or corrosive industrial conditions. 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 high-humidity facilities, stainless housings, and equipment panels 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 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.