1-8 x 5 Alloy Steel Socket Head Cap Screw is commonly used where an Allen-style socket drive is preferred over external-wrench hardware in confined equipment layouts. With a 1-8 thread and 5 in. length, it fits machine frames and brackets where size interchangeability matters. Common uses include processing equipment, machine tools, and assembly equipment, where internal hex installation helps keep the joint accessible. Socket engagement helps technicians apply installation torque from above the head in constrained layouts. This exact size supports industrial hardware, repair, and production requirements. Technical Highlights Material: Alloy Steel Thread: 1-8 Length: 5 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.