1/2-20 x 4 3/4 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. For machine frames and brackets, the 1/2-20 thread and 4 3/4 in. length help confirm the correct socket cap screw before installation. Selected for maintenance shops, manufacturing plants, and industrial facilities, it gives maintenance teams a searchable alloy steel socket screw callout. Socket engagement helps technicians apply installation torque from above the head in constrained layouts. Those verified dimensions support counterbore checks, tool selection, and replacement fastener review. Technical Highlights Material: Alloy Steel Thread: 1/2-20 Length: 4 3/4 in. Nominal Body Diameter: .500 in. Head Diameter: 0.735 in. min / 0.750 in. max Head Height: 0.492 in. min / 0.500 in. max Hex Key Size: 3/8 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.