12-28 x 8 Alloy Steel Socket Head Cap Screw provides a strength-focused alloy steel socket cap screw option for mechanical assemblies requiring this exact size. With a 12-28 thread and 8 in. length, it fits counterbored mounting points where size interchangeability matters. Common uses include manufacturing plants, fixture design, and processing equipment, where internal hex installation helps keep the joint accessible. Verified head dimensions and hex key size help engineering departments check fit before ordering. The technical highlight block below retains the verified head diameter, head height, body diameter, and hex key data. Technical Highlights Material: Alloy Steel Thread: 12-28 Length: 8 in. Nominal Body Diameter: .215 in. Head Diameter: 0.337 in. min / 0.344 in. max Head Height: 0.211 in. min / 0.215 in. max Hex Key Size: 5/32 Drive Type: Internal hex socket Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.