Description Amann Thread Color Charts Strongbond and/or Serabond You can order either one of Amann’s color charts, or you can order both. Strongbond is bonded nylon thread. Sizes available are as follows: T-70 / B-69 – 3,500m – Needles 18-20 Serabond is bonded polyester thread. Sizes available are as follows: T-90 / V-92 – 5,000 yards – Needles 18-20 T-135 / V-138 – 3,000 yards – Needles 19-21 T-210 / V-207 – 2,000 yards – Needles 22-23
