Dry Fly · Sizes #14-18
The TMC 921 Bronze is a barbed dry fly hook available in sizes #14-18. It's built around a notably short shank for very compact patterns, keeping the fly's silhouette tight to the bend, paired with fine wire, one step lighter than standard, which reduces the fly's weight and helps dry patterns sit high on the surface film. Tyers reach for it most often when working on dry fly, cdc, mayflies. The sections below break down what each specification actually means at the vice, which patterns suit it, and which hooks from other manufacturers you can substitute when it's out of stock.
Shank length (2XS). This hook has a notably short shank for very compact patterns, keeping the fly's silhouette tight to the bend.
Wire strength (1XF). It's made from fine wire, one step lighter than standard, which reduces the fly's weight and helps dry patterns sit high on the surface film.
Bend and gape (Std.). The 921 Bronze uses a standard gape, which keeps the fly's proportions traditional.
Eye type (Down). It's finished with a down eye, the traditional choice, which sets a good hooking angle for dry and wet flies fished on a tippet.
Barbed. This is a barbed hook. Many competition rules and an increasing number of catch-and-release fisheries require barbless, so check local regulations — the barb can be pinched down with flat-jawed pliers before you dress the hook.
The TMC 921 Bronze is tagged in the Woolly Bug database for dry fly, cdc, mayflies, caddis. Patterns that sit naturally on this hook include Adams, Parachute Adams, Royal Wulff, CDC Dun, CDC Emerger, CDC & Elk. Because the hook's proportions drive the finished fly's silhouette, it's worth matching the pattern's intended shape to the shank rather than forcing a recipe onto the wrong blank.
The 921 Bronze runs from size 14 through 18. The smaller end of the range (down to size 18) covers midge and small mayfly work, where fine tying thread and sparse dressings matter more than bulk. If you're buying this hook for the first time, the mid-range sizes see the most use at the vice, and tracking exactly which sizes you own is where an inventory app earns its keep — it's the detail most tyers forget at the fly shop counter.
These hooks match closely on the specifications that determine a fly's proportions and behaviour, so they work as substitutes.
If the TMC 921 Bronze is out of stock, the closest match in the database is the Daiichi 1100. When substituting, the specifications that matter most are gape and shank length — these determine whether the finished fly keeps its intended proportions. Wire strength is the next consideration, since it changes how the fly sits in the water: a heavier wire will sink a pattern that was designed to float. Eye type is usually the most forgiving difference, though switching to or from a jig eye changes how the hook rides entirely.
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Download FreeThe TMC 921 Bronze is a dry fly hook used for Dry Fly, CDC, Mayflies, Caddis. It's available in sizes #14-18 with a 2XS shank and 1XF wire.
The closest equivalents are: Daiichi 1100, Ahrex FW502 Black, Ahrex FW503 Black, Daiichi 1170, Ahrex FW500 Black. These match on the specifications that matter most — shank length (2XS), wire strength (1XF) and bend (Std.).
The TMC 921 Bronze is barbed. Barbed hooks can be pinched down with pliers where barbless is required by competition rules or fishery regulations.
It's available in sizes #14-18.
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