1-8 x 2 1/2 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 1-8 thread and 2 1/2 in. length, it fits repair inventories where size interchangeability matters. It is frequently used in tooling, manufacturing cells, and industrial facilities when socket engagement is preferred over external-wrench access. Socket engagement helps technicians apply installation torque from above the head in constrained layouts. The result is a clear alloy steel socket head cap screw listing for purchasing review and procurement. Technical Highlights Material: Alloy Steel Thread: 1-8 Length: 2 1/2 in. Nominal Body Diameter: 1.000 in. Head Diameter: 1.479 in. min / 1.500 in. max Head Height: 0.988 in. min / 1.000 in. max Hex Key Size: 3/4 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.