4-40 x 1/2 Brass Socket Head Cap Screw provides a brass socket-drive option for compact assemblies that need hex-key installation and material compatibility. Engineers may specify brass when the assembly benefits from machinable, non-magnetic, or conductive hardware characteristics. Internal-hex engagement gives engineering departments a familiar drive style for brass machine components. Typical placements include electronic assemblies, terminal hardware, and equipment covers where brass material properties and socket access are useful. Purchasing agents can source the specified brass fastener without changing the approved product family or material. Technical Highlights: Material: Brass; 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.