UTC Ultra Thread
UTC Ultra Thread is engineered specifically for fly tying. Made from nylon, it offers vibrant colors and a wide color range with light stretch, providing consistent tension and a natural tying feel. The stretch helps the thread grip materials more tightly, improving fly durability.
- Lightly waxed and flat, with minimal twists for optimal performance
- 100 yards per spool
- Multifilament, not bonded—ideal for split thread tying techniques
- Spools are sized to turn smoothly on standard bobbins
- Each spool features a color-coded end cap for easy identification
| Feature | Detail |
|---|---|
| Material | Nylon |
| Length per spool | 100 yards |
| Thread type | Multifilament, not bonded |
| Surface | Flat, lightly waxed |
| Compatibility | Works with standard bobbins |
FAQ
What makes UTC Ultra Thread different from other fly tying threads?
UTC Ultra Thread is made from nylon with light stretch and a flat, minimally twisted structure. Its multifilament, unbonded construction provides better grip and performance in split thread tying, while the lightly waxed surface ensures smooth handling and consistent tension.
Is the thread suitable for split thread tying?
Yes, the multifilament and unbonded structure of UTC Ultra Thread makes it ideal for split thread tying techniques, allowing for precise control and better material coverage.
How long is each spool?
Each spool contains 100 yards of thread.

Kevin Mathis –
I’ve been using UTC Ultra Thread for several months now and it’s proven reliable. The colors are vivid and the thread holds well under tension. It’s especially good for split tying because it doesn’t break easily and stays consistent during use.
James Alsop –
The flat, lightly waxed surface makes it easy to handle and the thread doesn’t fray. I noticed better fly durability compared to other nylon threads I’ve tried. The color-coded end caps help me quickly identify the right spool for each pattern.
Caroline Ross –
It performs well in my fly tying routine. The stretch gives a good grip, and the thread doesn’t slip during tying. A bit more expensive than some alternatives, but the quality justifies the price.