4-40 x 2 3/4 316 Stainless Socket Head Cap Screw is commonly used when the fastener must match a specified thread and length while adding 316 stainless corrosion resistance. This material selection supports long-term service in many corrosive industrial and coastal settings. Hex-key installation helps technicians reach fastening points inside guards, covers, brackets, and fixtures. Typical placements include machine building, fixture design, and precision assemblies where stainless corrosion resistance and internal-hex access are practical. Design engineers can compare the listed head dimensions and hex key size against counterbore and tooling requirements. Technical Highlights: Material: 316 Stainless Steel; Thread: 4-40 UNC; Length: 2 3/4 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.