7/8-9 x 2 1/4 Alloy Steel Socket Head Cap Screw provides a strength-focused alloy steel socket cap screw option for mechanical assemblies requiring this exact size. The 7/8-9 thread and 2 1/4 in. length support service work where the exact thread and length are already defined in tooling plates. Industrial buyers may specify it for production lines, maintenance shops, and machine tools where head geometry and drive access need to be predictable. The dimensional highlights make the listing more useful for maintenance shops and industrial distribution teams. The result is a clear alloy steel socket head cap screw listing for purchasing review and procurement. Technical Highlights Material: Alloy Steel Thread: 7/8-9 Length: 2 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.