What do thread sizes like 6/0 or 8/0 mean?

Lower numbers are thicker and stronger, while higher numbers are finer for smaller flies.

What’s the difference between UTC, UNI, and Veevus thread?

UTC lies flat, UNI grips materials better, and Veevus offers superior strength in fine diameters.

Which thread brands do you carry?

Drift Outfitters carries Veevus, UNI, UTC and Hareline — trusted for quality and consistency.

How should I store fly tying thread?

Organize by size and colour on racks or in boxes, and keep spools clean and out of sunlight.

UTC - Ultra Thread 70D

Q: What is fly tying thread used for?

Thread secures materials and builds durable flies for all patterns and sizes.

Q: What types of fly tying thread do you carry?

We stock nylon, polyester, UTC, and GSP threads in multiple colours and sizes.

$5.25

$5.25 ~~$3.95~~

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Product Description

UTC – Ultra Thread 70D – Smooth, versatile thread for precise fly tying.

The UTC Ultra Thread 70D is a premium flat nylon thread designed for precision and versatility at the fly-tying bench. With its fine diameter and smooth, flat profile, it allows for clean wraps and minimal bulk, making it ideal for delicate dry flies, nymphs, and smaller patterns. Strong for its size, the 70-denier thread holds materials securely without crowding the hook eye, while its ability to be split makes it perfect for dubbing loops. Available in a wide range of colours, UTC Ultra Thread 70D is a reliable choice for tiers seeking control, finesse, and a professional finish on their flies. Shop online or visit Drift Outfitters in Toronto for expert advice and fast shipping anywhere in Canada.

Size: 70 Denier.
Spool: 100 yds.

Fly Tying Thread FAQ

Q: What is fly tying thread used for?
A: Fly tying thread is essential for securing materials to the hook and building durable, well-proportioned flies. It comes in various strengths and textures, allowing tiers to achieve precise control whether they’re creating delicate dry flies, sturdy streamers, or intricate nymphs.

Q: What types of fly tying thread do you carry?
A: Drift Outfitters carries nylon, polyester, UTC, and GSP (gel-spun polyethylene) threads in a wide range of sizes and colours. Nylon and polyester threads are versatile and smooth, while GSP is extremely strong and ideal for heavy-duty or deer-hair work.

Q: What do thread sizes like 6/0, 8/0, or denier mean?
A: The size rating describes a thread’s diameter and strength — smaller numbers (like 3/0) are thicker and stronger, while higher numbers (like 12/0) are finer for delicate flies. Denier ratings measure the actual thickness: lower denier threads are finer, while higher numbers indicate heavier, stronger thread.

Q: What’s the difference between UTC and Veevus thread?
A: UTC thread lies flat and spreads easily for smooth heads or bodies, and Veevus thread combines strength with fine diameter for versatility. Each brand brings unique handling characteristics suited to different tying styles.

Q: Which brands of fly tying thread do you carry?
A: Drift Outfitters carries top brands like Veevus, UNI, and UTC. These threads are trusted for their consistency, colour range, and performance across all fly-tying applications.

Q: How should I store and organize my fly tying thread?
A: Store spools on a thread rack, dowel, or in a compartmental organizer by colour and size. Keep them out of direct sunlight and dust to prevent fading or fraying — good organization saves time and extends the life of your materials.