5/16-18 x 1 3/4 Brass Socket Head Cap Screw is specified where a non-ferrous internal-hex fastener is preferred for electrical assemblies or precision hardware. 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 machine building, fixture plates, and low-strength locating hardware 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: 5/16-18 UNC; Length: 1 3/4 in.; Nominal Body Diameter: 0.312 in.; Head Diameter: 0.469 in. max / 0.457 in. min; Head Height: 0.312 in. max / 0.306 in. min; Hex Key Size: 1/4; Drive Type: internal hex. Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.