Semperfli Nano Silk Pro 20D Professional Black

Nano Silk Pro 20D – Ultimate Professional Tying Thread

Nano Silk Pro 20D is the choice for the demanding fly tier who wants maximum strength in an extremely fine thread. This premium GSP thread is up to 10 times stronger than steel of the same diameter, making thread breakage virtually a thing of the past.

With a thickness of 20 denier (24/0), Nano Silk Pro 20D is particularly suitable for tying micro flies in hook sizes 20 through 32. Despite its minimal diameter, the thread maintains an impressive breaking strength of 750 g (26 oz / 1.65 lb). This means you can tie even the most delicate patterns without sacrificing durability.

Because Nano Silk lies perfectly flat, there is no unwanted material buildup – even after dozens of wraps. This makes the thread ideal for patterns requiring a slim head or a clean profile, or whenever you want your tying thread to remain as invisible as possible. For precision work, Nano Silk Pro 20D can even be split for the finest dubbing on micro flies.

Nano Silk Pro 20D is supplied on white spools, allowing you to easily distinguish it from other Nano Silk variants. For optimal use and to prevent damage, the use of a ceramic bobbin holder is strongly recommended.