Danville 6/0 Flymaster Thread (11 Black) Go to amazon.com Related posts Top fly tying thread for 2022 FeatureBest all-round thread for dry fliesBreaking strength of 16 oz.200 yd. spools DescriptionDanville's best all-round thread for dry flies. Has been measured at just under 80 denier and a breaking strength of 16 oz. 200 yd. spools.