AUSTOR 60-40 Tin Lead Rosin Core Solder Wire for Electrical Soldering (1.5mm, 100g) - Amazon.com
HARRIS, 1/8 in x 1 lb, 50/50, Solder Wire - 1UYH2|331753 - Grainger
Amazon.com: Solder Wire, 0.5mm 250g 60/40 Tin Rosin Core Solder Wire, Rosin Core Tin Solder, Roll of Welding Wire for Computer Repair Electrical Soldering : Tools & Home Improvement