12-28 x 3 1/2 Alloy Steel Flat Head Socket Cap Screw is commonly selected when a countersunk hole, clean top surface, and internal hex drive are part of the design. Its 82-degree countersunk head is useful when designers want a minimal surface profile while retaining internal hex access for installation and service work.
Typical uses include machine guarding, equipment covers, fixture plates, and tooling assemblies where a flush fastener helps keep the working surface clear. The material designation gives purchasing teams a clear match for equipment documents that call out alloy steel flat head socket cap screws. The internal hex drive supports top-side socket engagement where side access is limited.
For this 12-28 thread and 3 1/2 in. length, the verified head data helps engineers compare countersink depth, head clearance, and tooling access. Cold Headers focuses on difficult-to-find socket products where exact thread, length, and head style matter to the application.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
