7/8-9 x 1 1/4 Alloy Steel Socket Head Cap Screw supports industrial fastening where the socket head, internal hex drive, and verified head dimensions help match existing designs. The exact 7/8-9 x 1 1/4 size helps buyers align the fastener with bill-of-material consistency. It is frequently used in assembly equipment, tooling, and engineering departments when socket engagement is preferred over external-wrench access. The socket head form provides a cylindrical head suited to counterbores and recessed mounting pockets. This exact size supports industrial hardware, repair, and production requirements. Technical Highlights Material: Alloy Steel Thread: 7/8-9 Length: 1 1/4 in. Nominal Body Diameter: .875 in. Head Diameter: 1.293 in. min / 1.312 in. max Head Height: 0.864 in. min / 0.875 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.