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Semperfli Nano Silk 50D 12/0 Black Spool
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$5.79
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SKU: SNAN050BLK-886741026598
Overview
Built for fly tyers who want a dependable thread for a wide range of patterns, this black 12/0 option is suited to everything from small, precise work to larger flies. The 50D construction and 1.9 kg breaking strain give it a strong, practical profile for tying sessions where consistency matters. It comes on a 100-meter spool, offering plenty of material for ongoing bench use without frequent replacement. The black color keeps the presentation clean and versatile for general fly design.
Why Hunters Choose the Semperfli
100-meter Spool
Ample thread for multiple fly-tying
12/0 Size
Suits detailed work on micro
50d Denier
1.9kg breaking strain support demanding
Black Color
Neutral option for a wide
Packaged Spool
For straightforward storage and use
Key Features
- 50D Nano Silk tying thread in 12/0 size for fly tying.
- Black spool color for tying patterns that call for a dark thread.
- 100-meter spool length, approximately 109 yards.
- Breaking strain listed at 1.9 kg, or 4.2 lb.
- Suitable for tying micro to large flies.
- Packaged on a spool for convenient use.
Best Used For
- Fly tyers building micro patterns that need fine thread control and clean wraps
- Anglers tying larger flies who still want a thin, strong tying thread
- Tiered fly boxes or bench setups where black thread suits many pattern styles
- Professional or serious hobby tyers wanting a 100-meter spool for extended tying sessions
- Tyers who prefer a 12/0 thread size for detailed work across varied fly sizes
Specifications
| Actual Spool Length M | 100m |
|---|---|
| Actual Spool Length Yds | 109 yds |
| Aught | 12/0 |
| Breaking Strain Imperial | 4.2lb |
| Breaking Strain Kg | 1.9kg |
| Denier | 50D |
| Length In Meters | 100 |
| Product Delivery Package | Spool |
| Product Family | Nano 50D Raw |
| Vendor Color | Black |
Pros
- 100-meter spool provides ample thread for multiple fly-tying projects
- 12/0 size suits detailed work on micro to larger flies
- 50D denier and 1.9kg breaking strain support demanding tying applications
- Black color offers a neutral option for a wide range of fly patterns
- Packaged on a spool for straightforward storage and use
Considerations & Trade-offs
- The black color is useful for many patterns, but it may not suit flies where a lighter or more visible thread color is preferred.
- This is a 12/0 thread, so it is geared toward fine tying work and may be less convenient when a heavier thread is desired.
- The spool contains 100 meters (about 109 yards), which is ample for many projects but still a finite supply for frequent tyers.
- The product description emphasizes versatility across micro to large flies, but the best results will still depend on matching the thread choice to the specific pattern and tying style.
Suggested Comparisons
- Fly tying thread
- Fly tying materials
- Fly tying tools
- Fly tying kits
Suggested Accessories
- Thread storage organizer
- Fly tying bobbin
- Fly tying scissors
- Thread wax
Frequently Asked Questions
How much thread is on this spool?
The spool contains 100 meters of thread, which is approximately 109 yards.
What size is this tying thread?
It is listed as 12/0, with a denier rating of 50D.
What is the breaking strain of the thread?
The stated breaking strain is 1.9 kg, or 4.2 lb.
What color is this spool?
This product is the black version.
What kind of flies is this thread described as suitable for?
The product description says it is suitable for crafting flies from micro to large sizes.