141106-050 1&2 GA 1/4" Stud Fusion MagnaLug® End Lug (50 PCS) - These lugs are made 100% copper alloy, tin plated for added conductivity and to resist corrosion with superior reliability for years of dependable service. They are up to 70% stronger than crimp method for a more consistent quality than any other solder method including traditional wire solder & solder slug. They are especially good in presence of destructive vibration or corrosive chemicals.