Description UTC Ultra Thread is a premium nylon fly-tying thread that combines exceptional strength with a slim profile, making it a favorite among tyers worldwide. Its smooth, multifilament construction lays flat on the hook shank, reducing bulk and creating clean, elegant bodies. Perfect for everything from tiny midges to large streamers, Ultra Thread provides excellent grip and durability for patterns that hold up cast after cast. Available in 70, 140, and 210 denier, this thread gives tyers the flexibility to match hook size and fly style with the ideal diameter. The round, non-bonded design makes it the go-to choice for split-thread techniques, dubbing loops, and precise material control. With a huge range of colors, Ultra Thread allows endless customization whether you’re tying subtle classics or flashy attractors. Recommended Uses: 70D: size #14 and smaller flies (similar to Danville 6/0) 140D: sizes #6–14 flies (similar to Danville Flymaster+ 140) 210D: ideal for streamers, saltwater, and big predator flies Features Construction: Super-strong multifilament nylon with a smooth, round cross-section Denier Options: 70D, 140D, and 210D for versatility across fly sizes Strength: 70D ~1 lb break strength; 140D ~2 lb; 210D even stronger for large flies Finish: Waxed with a slight twist for secure wraps and split-thread techniques Spool Size: 100 yards per spool Color Range: Wide selection of colors for any fly pattern
