• "Supplying fine threads to fishermen around the world for over 10 years."

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• YLI Japanese Silk
• - 100wt (3/0) Spools
• - 50wt Size 'A' Spools
• - Sparkle / Metallic
• - 100wt Variegated
• - 100wt (3/0) Cones
• - 100wt 3/0 Collections

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• YLI Thread Color Card
• Clear Thread Tubes
• About Color Names

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• Testimonials
• Quilt Thread Store

YLI Japanese Silk Thread for Fishermen.

Bamboo fly rod wrapping


Classic Fly Tying

Japanese silk thread from YLI is renown for being the best and is very popular among the makers of classic style bamboo fly rods, custom rod builders and in classic fly tying. Japanese silks have long been recognized as the finest in the industry. Silk is the world's strongest natural fiber and the colors are vibrant and true.

Available in 100wt 3/0 on 200 meter spools and 1,000 yard cones and 50wt Size 'A' on 100 meter spools. This thread is 100% Filament thread from Japan giving it superior strength and a smoother more vibrant finish that spun threads. Thread Size Comparison Chart.

YLI Japanese 100wt 3/0 200 meter Silk Thread Spools.
Great for building and repairing bamboo rods, guide wrapping and underlays, and classic fly tying!

This 100% silk thread is almost as fine as a human hair. It comes on 200 meter spools in 67 different colours.

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YLI Japanese 50wt Size 'A' 100 meter Silk Thread Spools.

The 50wt thread is 100% silk and heavier than the 100wt YLI silk thread.

Great for building and repairing bamboo rods, guide wrapping and underlays, and classic fly tying!

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YLI Metallic Silk Sparkle Threads

Metallic wraps and tipping look great on any rod.

YLI combines 100% silk 100wt 3/0 twisted with one strand of Gold or Silver Fine Metallic Nylon Thread.

The resulting thread is approximately 50wt size A on 100 meters spools.

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YLI Variegated Silk Thread 100wt 3/0 200m Spools

This a richly colored, subtle tone-on tone filament silk. The thread is made by varying the color tones that are dyed along a 100wt 3/0 silk thread.

Fun for rod wrapping and tipping.

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YLI Japanese 100wt 3/0 Silk Thread in 1,000 yard Cones
We carry 1,000 yard 100wt 3/0 silk thread mini cones in a variety of colours.

Perfect size from professional fishing rod builders.

Save over the cost of buying a large number of 200 meter spools individually.

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YLI Japanese 100wt Silk Thread 200 meter Spool Collections
If you like to save money then these are for you. The 200 meter spools are available in several silk thread collections.

Save over the cost of buying the spools individually.

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YLI Real Silk Thread Card
Ever wonder what a thread color will look like with your favorite varnish? Using YLI's New Real Thread Color Card, apply varnish to one half of the colored thread.

This card has all the YLI silk 100wt thread colors (solid, variegated & sparkle-metallic); and is the actual thread, not just a color sample.

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YLI Thread Spool Tubes
If you like keeping your YLI silk thread spools together these tubes are handy, especially if you are traveling. They are clear and easy to see through to arrange your own color collections.