Nano Silk Ultra 30 Denier 18/0 – Semperfli
Some of the finest thread available to date.
Great for tying those super tiny flies.
30 Denier, breaking strain of 5.9lbs!
50m spool
Use with ceramic bobbin.
| Specification | Value |
|---|---|
| Denier | 30 |
| Breaking Strain | 5.9lbs |
| Length | 50m |
| Application | Tying tiny flies |
| Recommended Bobbin | Ceramic |
FAQ
What is the breaking strength of the Nano Silk Ultra thread?
The breaking strength is 5.9lbs.
Can this thread be used for tying large flies?
No, it is specifically designed for tying super tiny flies.
Is the thread compatible with all types of bobbins?
It is recommended to use with a ceramic bobbin for optimal performance.




Natalie Greene –
The thread is incredibly fine and strong. I’ve been using it for tying small dry flies and it holds well under tension. The 50m spool is generous and the ceramic bobbin works perfectly with it. No fraying even after repeated use.
Olivia Quinn –
Highly satisfied with the quality. The 30 denier makes it ideal for tiny hooks. It’s smooth to wind and doesn’t break during tying. Very consistent in thickness and strong enough for field use.
Molly Smith –
Good thread for small flies. A bit expensive, but the strength and fine texture justify the price. Works well with ceramic bobbins. Would recommend for precision tying.