4-40 x 1 316 Stainless Socket Head Cap Screw is suited to equipment layouts that rely on internal-hex drive access and a standard socket head cap screw form. 316 stainless is useful where a clean appearance and added resistance to chloride exposure are both important. The drive style is useful when repeated maintenance requires controlled removal and reinstallation. Typical placements include power transmission guards, coupling covers, and production equipment where stainless corrosion resistance and internal-hex access are practical. Maintenance managers can match the thread, length, material, and head geometry already called out on service documentation. Technical Highlights: Material: 316 Stainless Steel; Thread: 4-40 UNC; Length: 1 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.