Uni Big Fly Thread is great for spinning deer hair, tying in woolheads, tying in gobs of bucktail on big-fish deceivers and anywhere that Extreme thread strength is required. Doesn't build up as fast as flat waxed nylon. Wraps flat. 80 yd spool.
Uni Big Fly Thread - White
UTC Ultra Thread - 280 denier – Rangeley Region Sports Shop
Magpie Materials Fly Tying Thread – charliesflybox
G.S.P (Gel Spun Polyethylene) is by far the strongest thread on the planet after our Veevus thread. In difference to other brands the Veevus
Veevus GSP 30D Threads 75m Black
Fly Tying Supplies & Materials
Wifreo 2pcs 8/0 Twisted Fly Tying Thread High Tensile Nylon Line for Nymph Dry/Wet Fly Trout Streamer Flies Fly Tying Material - AliExpress
Veevus 8/0 Thread – Fly Artist
Hemingway's Thread 8/0 - FrostyFly
Danville 140 Denier Waxed Flymaster+ Fly Tying Thread - Duranglers Fly Fishing Shop & Guides
Veevus 6/0 Thread – Fly Artist