Uni Thread 17/0 Trico

Uni Thread 17/0 Trico is a specialist white polyester tying thread for the smallest fly patterns. Its flat construction allows wraps to sit closely along the hook shank, helping the tier build delicate bodies without quickly adding unnecessary bulk. It is intended for flies tied on size 20 and smaller hooks, including tiny Trico and Caenis patterns, small baetis, micro-caddis, pupae, and spiders. The white colour provides a neutral background when only a small amount of body material is used. Handle it with light, steady bobbin tension and add only the wraps needed to secure each material; this keeps the fine pattern controlled and preserves its slim profile.

Construction and use

Use this very fine polyester thread when accurate, low-build tying is the priority. It is suited to miniature insect imitations and sparse spider-style flies where a conventional thread could make the finished body unnecessarily bulky.

• Type: flat polyester tying thread
• Best suited to: size 20 and smaller hooks; miniature patterns
• Patterns: Trico, Caenis, baetis, micro-caddis, pupae, and spiders
• Specification: 17/0 designation; 200 yds; white