7/8-9 x 7/8 Alloy Steel Socket Head Cap Screw supports industrial fastening where the socket head, internal hex drive, and verified head dimensions help match existing designs. This size keeps the specified 7/8-9 thread and 7/8 in. length visible for bill-of-material consistency. Applications often include machine tools, industrial automation, and material handling, especially where counterbored or close-clearance mounting is required. Verified head dimensions and hex key size help engineering departments check fit before ordering. This keeps the listing focused on the fastener geometry rather than broad catalog language. Technical Highlights Material: Alloy Steel Thread: 7/8-9 Length: 7/8 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.