UNI Big Fly Thread
UNI Big Fly Thread is a specialised fly tying thread developed for tying large, durable fly patterns where maximum strength and secure material control are essential. Made from the same high-quality polyester used in UNI Thread 6/0 and 8/0, it is four times stronger and four times thicker than UNI Thread 6/0 while maintaining a flat profile and excellent handling characteristics. UNI Big Fly is specifically designed for large saltwater flies, bass bugs and other oversized fly patterns that demand exceptional thread strength and reliability.
Technical Specifications
| Material | Polyester |
| Thread Size | Big Fly • 400 Denier |
| Spool Length | 80 yd (approximately 73 m) |
| Profile | Flat |
| Manufacturer | UNI Products |
| Series | UNI Thread |
| Application | Large streamers, pike flies, bass bugs, saltwater flies, tropical flies and other large predator patterns |
What is UNI Big Fly Thread?
UNI Big Fly Thread is a heavy-duty fly tying thread developed for patterns where standard threads simply cannot provide enough strength. Its flat construction spreads evenly over the hook shank, allowing bulky materials such as bucktail, deer hair, synthetic fibres and large feathers to be secured with confidence. The thread can easily be untwisted to work as a flat thread, helping to create strong, clean fly bodies with minimal bulk. Made from durable polyester, it will not dull your fly tying scissors and delivers reliable performance even on the largest fly patterns.
Key Benefits
- Specialised thread for tying large fly patterns.
- Four times stronger and four times thicker than UNI Thread 6/0.
- Flat profile helps distribute pressure evenly across materials.
- Easily untwists to create a wider, flatter thread.
- Polyester construction will not dull fly tying scissors.
- Ideal for securing bulky natural and synthetic materials.
Ideal For
- Large streamers
- Pike flies
- Bass bugs
- Saltwater flies
- Tropical flies
- Large predator fly patterns
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FlyFishing.bg RecommendationIf you tie large streamers for pike, bass, saltwater or tropical species using bulky materials such as bucktail, deer hair or synthetic fibres, UNI Big Fly Thread offers significantly greater strength and control than standard fly tying threads. This is the thread to reach for whenever maximum holding power matters more than thread diameter. |
- Denier400
- А type of threadPolyester
- Length, meters73