8-36 x 3 1/4 Alloy Steel Socket Head Cap Screw gives engineers an internal-hex fastener for mechanical joints where socket engagement and dimensional consistency matter. This size keeps the specified 8-36 thread and 3 1/4 in. length visible for bill-of-material consistency. Common uses include assembly equipment, engineering departments, and production lines, where internal hex installation helps keep the joint accessible. Alloy steel supports strength-focused fastening where clamp load and repeatable assembly are important. The combination of product name, size, material, and verified head data improves search clarity for engineers and buyers. Technical Highlights Material: Alloy Steel Thread: 8-36 Length: 3 1/4 in. Nominal Body Diameter: .164 in. Head Diameter: 0.262 in. min / 0.270 in. max Head Height: 0.159 in. min / 0.164 in. max Hex Key Size: 9/64 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.