Fly tying thread has a simple job - hold your chosen materials to the hook. It gets more confusing after that though due to the wide variety of sizes, colors, and materials. Tagged "Fly Tying Materials_Thread".
Hemingway's Ultra Strong GSP Thread - FrostyFly
YZD has created a range of light, strong fly tying thread with a wide selection of colors. All YZD thread has breaking strength above comparable sizes
YZD Fly Tying Thread 6/0 Fly Tying Materials Supplies Thread Fly Fishing Fly Tieing Materials kit Flies Making for Wet Dry Nymph Flies Chenille Fly
Meticulously designed and built solid wood with drawers, racks and holders for all your fly tying tools. Turquoise inlay and wood marquetry design.
Fly Tying Cabinets
Thread 8/0 is an all-purpose fly tying thread. This fly tying thread is thin and strong for it's diameter and can be used to tie small to large sized
Fly Tying Thread 8/0 Waxed (26 Colors)
Fly Tying Materials - Thread, Wire & Tinsels
Hemingway's Ultra Strong GSP Thread - FrostyFly
Fly Tying Thread, Denier & Sizes Explained Here. Buy Fly Tying Threads
Fly Tying Archives - Hastings Fly Fishers
Fly Tying Thread, Construction, & Materials - Fly Fisherman