Thread Nylon Upholstery Navy Blue (1500 Yds) is a "High-Spec" nylon #69 bonded thread designed for medium to heavy upholstery fabrics, plastics, tarpaulin, and leather. This upholstery thread meets all specifications for automotive, furniture, marine interior, and industrial applications. Nylon upholstery thread features high tensile strength, abrasion resistance, and dependable consistency in quality and color. Twisted and bonded. Made in the USA.