Veniard UTC Threads Posted in Fly Tying Materials, Sportfish Extra strong, lightly waxed nylon thread. A silky smooth thread that lays very flat.Sizes Available: 70 Denier & 140 Denier Store: Sportfish Buy at Store Related PostsVeniard Uni thread 6/0 Pre Waxed ThreadVeniard Cactus ChenilleRite BobbinVeniard Bead ChainSemperfli Kapok Dubbing Dispenser