What do the letters and numbers on the end of a Kreinik spool of thread represent?
Listed on the end of each spool of Kreinik thread is the thread weight, thread color, and thread length. For example a spool may read: Medium (#16 Braid), 6301, 5M. Medium (#16 Braid) represents the thread weight. 6301 represents the thread color. 5M represents the thread length, which in this case is five meters. (1 meter = 39 inches).