24-6337-0069 is a flux-cored solder wire featuring Kester 44 rosin flux, an activated rosin formula designed for reliable production line soldering. The product uses a Sn60Pb40 alloy composition with 0.125 inch (3.00 mm) diameter wire, a 66-core configuration, and 3.3% flux content. The solder is leaded and contains halogen, classified as ROM1 per J-STD-004 standard. The "instant-action" wetting behavior and high mobility of the 44 flux ensure fast-spreading action and consistent solder joint quality. This product is commonly used in electronics assembly, repair, and rework applications where reliable wetting and consistent performance are critical for production efficiency.