1-8 x 12 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. The exact 1-8 x 12 size helps buyers align the fastener with bill-of-material consistency. Applications often include assembly equipment, machine tools, and production lines, especially where counterbored or close-clearance mounting is required. The socket head form provides a cylindrical head suited to counterbores and recessed mounting pockets. Those verified dimensions support counterbore checks, tool selection, and replacement fastener review. Technical Highlights Material: Alloy Steel Thread: 1-8 Length: 12 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.