Semperfli Nano Silk Fly Tying Thread
Semperfli Nano Silk Fly Tying Thread is regarded as the number one choice of professional fly tyers worldwide. Being super strong and available in such a variety of colors and deniers, it has endless possibilities and can be used for micro to medium flies. Virtually unbreakable and still capable of being split down for dubbing twists, there is no fly tying thread as strong as Nano Silk anywhere.
Key Features
- Can be split for dubbing loops
- Lays flat when wrapped
- Use with ceramic bobbins
Hook Size Compatibility
| Hook Size | Compatible Range |
|---|---|
| 18/0 | 16 to 32 |
| 12/0 | 8 to 18 |
| 6/0 | 10 to 2/0 |
| 3/0 | 10 to 2/0 plus |
FAQ
Can this thread be used for both micro and medium-sized flies?
Yes, the Semperfli Nano Silk Fly Tying Thread is suitable for both micro and medium-sized flies due to its strength and flexibility.
Is the thread compatible with ceramic bobbins?
Yes, it is specifically designed to work with ceramic bobbins.
Can the thread be split for dubbing loops?
Yes, the thread can be split down for dubbing twists, making it versatile for various fly construction techniques.




Hannah Greene –
I’ve been using this thread for several months now and it’s incredibly strong. It holds up well even in tough fishing conditions. The way it lays flat when wrapped makes tying precise flies much easier. I’ve split it for dubbing and it performs perfectly without breaking.
Kylie Watson –
As a professional fly tyer, I rely on high-quality materials. This thread is unmatched in strength and consistency. It works seamlessly with my ceramic bobbins and allows for clean, tight wraps. The variety of colors is also a big plus.
Lucas Allan –
The thread is very durable and holds up well in the field. I’ve used it on both small and medium flies, and it performs reliably. The only minor issue is that it can be a bit difficult to split initially, but once you get the technique, it’s smooth.
Colin Clarkson –
I switched from another brand and have not looked back. The strength and flat lay are excellent. It’s ideal for detailed fly tying and maintains its integrity even after repeated use.