5401.10.00.00 - Of synthetic filaments (200)

This HTS category, 5401.10.00.00, specifically covers sewing thread manufactured from synthetic filaments. Synthetic filaments are man-made fibers produced through chemical processes, such as polyester, nylon, or acrylic. The thread can be in any form suitable for sewing, including wound on bobbins, spools, or cones, and may also be presented in packaging for retail sale. The key defining characteristic for inclusion in this heading is the material composition of the filaments used to create the thread.

This category is distinguished from its sibling, 5401.20.00.00, which covers sewing thread made from artificial filaments. Artificial filaments, such as rayon or viscose, are also man-made but are derived from natural cellulosic materials. Therefore, the primary differentiator for classification within this heading versus its sibling lies in the specific manufacturing origin and chemical composition of the filaments.

As this is a leaf node within the HTS, there are no further subcategories for sewing thread of synthetic filaments. Classification at this level is determined solely by the filament material. Therefore, any sewing thread composed of synthetic fibers, regardless of color, thickness, or put-up, will fall under this specific heading, provided it meets the general description of sewing thread.