PEM® SFN™ spinning flare nuts from PennEngineering® become permanently captivated upon installation in thin metal sheets and, when paired with a self-clinching stud or other fixed externally threaded hardware, can eliminate all loose fasteners (including flange nuts) in attachment applications. These one-piece, flanged hex nuts additionally will spin freely in a sheet enabling quick attachment to mating hardware. Their use ultimately promotes savings in assembly time and costs.
PEM SFN steel spinning flare nuts install in steel, stainless steel, or aluminum sheets of any hardness and as thin as 1mm. They are available in metric thread sizes M5, M6, and 8.