7/16-20 x 8 1/2 Alloy Steel Socket Head Cap Screw is specified when a machine assembly needs a high-strength alloy steel socket screw with predictable head and drive geometry. With a 7/16-20 thread and 8 1/2 in. length, it fits tooling plates where size interchangeability matters. Applications often include engineering departments, industrial automation, and maintenance shops, especially where counterbored or close-clearance mounting is required. The socket head form provides a cylindrical head suited to counterbores and recessed mounting pockets. This keeps the listing focused on the fastener geometry rather than broad catalog language. Technical Highlights Material: Alloy Steel Thread: 7/16-20 Length: 8 1/2 in. Nominal Body Diameter: .437 in. Head Diameter: 0.642 in. min / 0.656 in. max Head Height: 0.430 in. min / 0.438 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.