Hooks · By size
Size #21 hooks, every brand
2 fly hook models from 1 brand in size #21. Published gape runs from 2.7 mm to 3.1 mm. Sorted by gape, with wire, length, eye and source.
| Model | Gape (mm) | Wire Ø (mm) | Total length (mm) | Eye | Shank | Use | Source |
|---|---|---|---|---|---|---|---|
| TiemcoTMC 112Y | 2.7 | Not published | 6.5 | Down Eye | 5XS | Dry Fly | mistpool.comUnverified |
| TiemcoTMC 212Y | 3.1 | Not published | 6 | Not published | Not published | Dry Fly | mistpool.comUnverified |
Gape is the inside gap between point and shank as published in a size table. Only values from the manufacturer's own page are marked Verified; flyhooks.org caliper readings are community verified; retailer tables stay unverified until the maker confirms them. Blank cells mean no source publishes that number for this size; the row is listed so you can see the size exists. Every field has a ? that emails a correction. See the methodology.