4-40 x 3/8 Brass Socket Head Cap Screw helps solve fastening needs in equipment where conductivity, non-magnetic behavior, and clean appearance are more important than clamping load. Brass is often selected for electrical conductivity, non-magnetic properties, machinability, and a clean finished appearance. The cylindrical head gives designers a compact bearing surface while preserving socket drive access for service. Typical placements include instrumentation, sensor brackets, and laboratory fixtures where brass material properties and socket access are useful. Industrial distributors can support customers who need a size-specific brass socket head cap screw for repair or production use. Technical Highlights: Material: Brass; Thread: 4-40 UNC; Length: 3/8 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.