5/16-24 x 3 Alloy Steel Socket Head Cap Screw is a socket head cap screw for buyers matching an exact thread and length to drawings, repair records, or stocked hardware. With a 5/16-24 thread and 3 in. length, it fits tooling plates where size interchangeability matters. Common uses include packaging machinery, manufacturing cells, and engineering departments, where internal hex installation helps keep the joint accessible. Verified head dimensions and hex key size help engineering departments check fit before ordering. This exact size supports industrial hardware, repair, and production requirements. Technical Highlights Material: Alloy Steel Thread: 5/16-24 Length: 3 in. Nominal Body Diameter: .312 in. Head Diameter: 0.457 in. min / 0.469 in. max Head Height: 0.306 in. min / 0.312 in. max Hex Key Size: 1/4 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.