1/2-20 x 3 3/4 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 1/2-20 x 3 3/4 size helps buyers align the fastener with matching drawings and maintenance records. It is frequently used in maintenance repair, manufacturing plants, and processing equipment when socket engagement is preferred over external-wrench access. Internal hex drive access helps installation in compact assemblies, guards, housings, and fixture plates. The combination of product name, size, material, and verified head data improves search clarity for engineers and buyers. Technical Highlights Material: Alloy Steel Thread: 1/2-20 Length: 3 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.