Uni Big Fly Thread Assorted Colors

Heavy-Duty Strength for Big Patterns

When you're building large saltwater flies, bass bugs, or pike streamers, standard thread won't cut it. Uni Big Fly Thread delivers four times the strength of 6/0 thread while maintaining the same easy handling and scissors-friendly polyester construction you trust from Uni-Products. This is the workhorse thread for patterns that demand serious durability.

Why Big Fly Thread Dominates

• Exceptional Strength: 400 denier construction provides four times the breaking strength of standard 6/0 thread
• Scissors-Friendly Polyester: Same material as Uni 6/0 and 8/0 – won't dull your fly-tying scissors like GSP threads
• Flat-Thread Versatility: Untwists quickly and easily for smooth, flat wraps on large heads and bodies
• Generous Spool Size: 80-yard spools provide plenty of thread for multiple large patterns

Perfect For

Saltwater streamers and poppers, pike and musky flies, bass bugs, large articulated patterns, and any application where you're lashing down heavy materials or building substantial thread heads. Big Fly Thread excels when standard threads simply can't handle the job.

Picture cinching down a deer hair head or securing heavy lead eyes without worrying about thread breaks – that's the confidence Big Fly Thread brings to your vise.