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Fly Tying Threads & Silks

Serious about tying perfect flies? you’ll love our range of

Fly Tying Threads, Silks

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High Quality Fly Tying Materials

. At troutcatchers, we stock Premium options from world-class names like Uni, Veniard and Turrall, so whether you tie delicate dry flies or robust streamers, you’ll find exactly what you need.

From ultra-fine silks for traditional dry-fly work to strong, synthetic threads that won’t let you down under stress, our selection combines durability, precision and beauty. Colours stay true, strength holds fast, and the finish on every spool is top notch.

Extensive choice of materials — silk, nylon, polyester, GSP — so you get exactly the thread strength and texture your pattern demands.
Trusted brands like Veniard & Turrall ensuring consistent quality, accurate sizing (denier or aught), and superb colour fidelity.
Expert advice & clear technical info so you understand what you’re buying — size, breaking strength, stretch, and use-case.
Great value, fast shipping, and service from fly-tyers for fly-tyers.

6/0 Uni Pre Waxed Thread - 50 Yards
	UNI 6/0 Pre Waxed Thread is a dependable all-round thread for nymphs, dries and wet flies. Smooth, 136-denier polyester on a 50-yard spool in 23 colours.
	£ 1.97 See All Options (23)

6/0 Uni Pre Waxed Thread - 200 Yards
	UNI 6/0 Pre Waxed Thread is a dependable all-round thread for nymphs, dries and wet flies. Smooth, 136-denier polyester on a 200-yard spool in 24 colours.
	£ 4.27 See All Options (71)

8/0 Uni Super Midge PreWaxed Thread - 50 Yards
	UNI 8/0 Super Midge PreWaxed Thread keeps smaller dries, midges and slim nymphs beautifully neat. Fine 72-denier polyester, lightly waxed, with 20 colours on 50-yard spools.
	£ 1.97 See All Options (18)

8/0 Uni Super Midge PreWaxed Thread - 200 Yards
	UNI 8/0 Super Midge PreWaxed Thread keeps smaller dries, midges and slim nymphs beautifully neat. Fine 72-denier polyester, lightly waxed, with 20 colours on 200-yard spools.
	£ 4.27 See All Options (39)

6/0 Uni Pre Waxed Thread - 50 Yards - Mixed Box 20 Colours
	UNI 6/0 Pre-Waxed Thread mixed box brings you 20 handy tying colours on 50-yard spools. A great-value collection for nymphs, wets and everyday trout flies.
	£ 34.17 Details Add to Cart (2)

6/0 Uni Pre Waxed Thread - 200 Yards - Mixed Box 20 Colours
	UNI 6/0 Pre-Waxed Thread mixed box brings you 20 handy tying colours on 200-yard spools. A great-value collection for nymphs, wets and everyday trout flies.
	£ 74.47 Details Add to Cart (1)

8/0 Uni Super Midge PreWaxed Thread - 50 Yards - Mixed Box 20 Colours
	UNI 8/0 Pre-Waxed Thread mixed box brings you 20 handy tying colours on 50-yard spools. A great-value collection for fine dry flies and midges.
	£ 34.17 Details Add to Cart (7)

8/0 Uni Super Midge PreWaxed Thread - 200 Yards - Mixed Box 20 Colours
	UNI 8/0 Pre-Waxed Thread mixed box brings you 20 handy tying colours on 200-yard spools. A great-value collection for fine dry flies and midges.
	£ 74.47 Details Add to Cart (1)

Ephemera Pure Fly Tying Silk
	Ephemera Pure Fly Tying Silk: fine, lustrous silk and a superb choice for former Pearsall Gossamer users, North Country spiders and classic wet flies.
	£ 4.17 See All Options (37)

Ephemera Silk Calzolari Selection
	Ephemera Silk Calzolari Selection - all 16 Ephemera Pure Fly Tying Silk colours supplied in a handy box. Ephemera Pure Fly Tying Silk - At last a replacement for Pearsall Gossamer Fly Tying Silk which is sadly no longer available – However early reviews indicate tyers would choose Ephemera Pure Silk rather than the Pearsalls Gossamer Silk if both were available, its that good!
	£ 57.87 Details Add to Cart

Gordon Griffiths Sheer Ultra Fine Thread (14/0)
	Gordon Griffiths Sheer 14/0 gives small dries, spiders and midges a fine, tidy finish. Lightly waxed single-ply thread on a 100m spool, with 12 useful colours.
	£ 2.07 See All Options (32)

Kevlar Thread
	Veniard Kevlar Thread gives strong, reliable holds when spinning deer hair and tying robust Muddlers, Bombers and larger streamers.
	£ 4.57 See All Options (26)

Utc Ultra Thread 70 Denier (Approx. 8/0)
	UTC Ultra Thread 70 Denier lays flat for tidy fly bodies and neat heads. Lightly waxed, easy to control and supplied on 100-yard spools.
	£ 3.47 See All Options (55)

Utc Ultra Thread 140 Denier (Approx. 6/0)
	UTC Ultra Thread 140 Denier lays flat for tidy fly bodies and neat heads. Lightly waxed, easy to control and supplied on 100-yard spools.
	£ 3.47 See All Options (32)

Petitjean Split Thread
	Marc Petitjean Split Thread is a specialist 200-metre tying thread for trapping fine CDC and dubbing fibres in neatly proportioned emerger, wet-fly and dry-fly collars.
	£ 5.07 See All Options (3)

Marc Petitjean Split Thread 4 X Mixed Colours
	Marc Petitjean Split Thread 4 X Mixed Colours contains four 200-metre spools of the same split tying thread, offering an assortment for CDC collars, dubbing and emergers.
	£ 17.37 Details Add to Cart (6)

Micro Glint
	Veniard Micro Glint is a fine iridescent metallic thread, 30m per spool, for neat buzzer bodies, nymph ribs and subtle fly-tying highlights.
	£ 3.07 See All Options (26)

Uni Mono Clear Tying Thread
	UNI Mono Clear Tying Thread is clear monofilament supplied on Fine 200-yard and Medium 100-yard spools for discreet tying, secure ribbing and transparent finishes on freshwater or saltwater patterns.
	£ 3.37 See All Options (9)

Uni Trico Thread 17/0
	UNI Products’ 17/0 Trico Thread is extra-fine, 40-denier white polyester tying thread for miniature flies. The 200-yard spool builds slim, controlled bodies around size 20 and smaller hooks without excessive thread bulk.
	£ 2.17 Details Add to Cart (3)

Uni Nylon Extra Strong Thread
	UNI Nylon Extra Strong Thread gives slim, secure tying wraps for dries, nymphs and wet flies. Choose a fine or medium gauge in black or white.
	£ 3.27 See All Options (4)

Uni Glo Thread
	Uni Glo Thread brings an extra trigger point to modern fly tying with a phosphorescent glow that continues working long after daylight fades. Designed by Uni Products, this 3/0 white glow-in-the-dark thread charges under light and emits a visible glow, making it especially useful for hot spots, lure patterns, predator flies and night-time sea trout patterns.
	£ 4.07 Details Add to Cart

Semperfli Nano Silk 50D 12/0
	Semperfli Nano Silk 50D 12/0: fine, strong GSP tying thread for dry flies, nymphs and split-thread dubbing in nine colours.
	£ 4.20 (-12.62%) £ 3.67 See All Options (25)

Uni Big Fly Thread 3/0
	UNI Big Fly Thread 3/0 gives larger streamers a secure, strong tying foundation. Easy to flatten for smooth wraps, with 80 yards per spool in nine colours.
	£ 4.07 See All Options (3)

Pearsalls Marabou Floss Body Silk
	Pearsall’s Marabou Floss Body Silk is a traditional smooth body silk supplied on 8-metre spools for classic trout and salmon flies. Sadly discontinued, with no further stock once sold.
	£ 6.17 See All Options (10)

Pearsalls Gossamer Fly Tying Silk
	Pearsall's Gossamer Fly Tying Silk, traditional old fashioned fly tying silk, Pearsall Gossamer silk is superb for tying small wets, nymphs, buzzers, and dry flies. Plus used extensively for Rod whippings. Pearsall's Gossamer silk in 45 meter spools and a choice of 24 different popular silk colours.
	£ 6.97 See All Options (67)

Utc GSP Thread
	Wapsi Fly Utc GSP Thread. White 100-denier GSP thread on a 50-yard spool, with reliable grip for hair wings, streamers and robust fly dressings.
	£ 5.77 See All Options (5)

Uni 1/0 Neon Fluo Tying Thread
	UNI 1/0 Neon Fluo Tying Thread combines strong tying control with striking fluorescent colours for larger lures, salmon flies and bright hot spots.
	£ 3.07 See All Options (6)

Semperfli Nano Silk 200D 3/0 Big Game
	Semperfli Nano Silk 200D 3/0 Big Game, 50mtr Amazing Nano Silk strength: - Bulkier for rapid build up - Can be split further - Available in black or white - White can be coloured with a permanent marker pen for the colour of choice
	£ 2.97 See All Options (1)

Veevus Power 140 Denier Thread
	Veevus Power 140 Denier Thread: strong flat-laying polyester fly-tying thread, 100m per spool, for secure hair and medium-to-large fly dressings.
	£ 4.47 See All Options (19)

Veevus Power 240 Denier Thread
	Veevus Power 240 Denier Thread: strong flat-laying polyester tying thread, 75m per spool, for large flies and demanding hair tie-ins.
	£ 4.37 See All Options (3)

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Fly Tying Threads & Silks

Fly Tying Threads, Silks

High Quality Fly Tying Materials

6/0 Uni Pre Waxed Thread - 50 Yards

6/0 Uni Pre Waxed Thread - 200 Yards

8/0 Uni Super Midge PreWaxed Thread - 50 Yards

8/0 Uni Super Midge PreWaxed Thread - 200 Yards

6/0 Uni Pre Waxed Thread - 50 Yards - Mixed Box 20 Colours

6/0 Uni Pre Waxed Thread - 200 Yards - Mixed Box 20 Colours

8/0 Uni Super Midge PreWaxed Thread - 50 Yards - Mixed Box 20 Colours

8/0 Uni Super Midge PreWaxed Thread - 200 Yards - Mixed Box 20 Colours

Ephemera Pure Fly Tying Silk

Ephemera Silk Calzolari Selection

Gordon Griffiths Sheer Ultra Fine Thread (14/0)

Kevlar Thread

Utc Ultra Thread 70 Denier (Approx. 8/0)

Utc Ultra Thread 140 Denier (Approx. 6/0)

Petitjean Split Thread

Marc Petitjean Split Thread 4 X Mixed Colours

Micro Glint

Uni Mono Clear Tying Thread

Uni Trico Thread 17/0

Uni Nylon Extra Strong Thread

Uni Glo Thread

Semperfli Nano Silk 50D 12/0

Uni Big Fly Thread 3/0

Pearsalls Marabou Floss Body Silk

Pearsalls Gossamer Fly Tying Silk

Utc GSP Thread

Uni 1/0 Neon Fluo Tying Thread

Semperfli Nano Silk 200D 3/0 Big Game

Veevus Power 140 Denier Thread

Veevus Power 240 Denier Thread