Studs
FSC 5307: Studs
Federal Supply Class (FSC) 5307 covers studs, the externally threaded fasteners with threads on one or both ends used in high-strength joints. The catalog includes studs built to NAS, AN, MS, and MIL-SPEC specifications.
Studs anchor into one part and accept a nut on the other, providing strong, repeatable joints in engines, flanges, and structures. They suit joints that are assembled and disassembled often.
Common types include fully threaded studs, double-end studs, tap-end studs, and welding studs. Materials include alloy steel, stainless steel, and high-temperature alloys with protective finishes.