Built for demanding fly tying, this heavy-duty thread is ideal for big saltwater patterns, bass bugs, and other applications where maximum strength and durability matter. Made from polyester (the same material used in classic 6/0 & 8/0), it won’t dull fly-tying scissors and offers reliable handling at the vise.
- 400 denier for powerful wraps on large flies
- Tested breaking strength up to 100 oz.
- Approximately 4x stronger and 4x thicker than typical 6/0 thread
- Excellent for spinning deer hair
- Untwists quickly and easily for flat-thread applications
- Lies flat without the slickness of Kevlar
- 80 yd. spool
If you’re tying big, tough flies and need a strong thread that handles cleanly, lays flat, and cinches down securely, this is a dependable choice for saltwater, bass, and oversized fly patterns.






