Harris 60/40 Rosin Core Solder, 1/8 in, 1 lb

Harris 331857 is a 60% tin / 40% lead, rosin-core, flux-cored solder wire engineered for electrical and electronic work; this 1/8 in (3.2 mm) diameter, 1 lb spool delivers the classic 60/40 eutectic-adjacent performance with a 445–500°F (229–260°C) melting range and convenient built-in rosin flux for small connections on copper, most copper alloys, lead, nickel alloys, and steel.