HS Code for Synthetic sewing thread

HS code 550810 is specifically allocated to sewing thread made of synthetic staple fibers. To be classified under this heading, the textile product must meet the definition of "sewing thread" provided in the Section XI notes of the Harmonized System. This generally means the thread must be dressed (finished) or have a final "Z" twist, making it suitable for use in a sewing machine or for hand stitching. The use of staple fibers—which are fibers of a limited length that have been spun together—is the primary factor that distinguishes this code from those in Chapter 54, which covers filament yarns. Whether the thread is intended for industrial use on large cones or put up for retail sale on small spools, it remains within this classification. The technical distinction between staple and filament is crucial for trade statistics and regulatory compliance, as the manufacturing processes for these two types of thread involve different industrial sectors. The classification is also independent of the weight or decitex of the thread, provided it meets the functional definition of sewing thread rather than general-purpose yarn.

Products Included

• Polyester staple fiber sewing thread
• Acrylic sewing thread
• Spun synthetic sewing kits
• Industrial synthetic thread spools
• Polypropylene sewing thread made from staple fibers

Common Misclassification

Frequently confused with 540110, which covers sewing thread made of synthetic filaments (continuous strands). It may also be mistaken for 5509, which covers yarn of synthetic staple fibers that has not been specifically prepared, twisted, or finished for use as sewing thread. Using the wrong code can lead to issues with textile quotas or anti-dumping duties.

FAQ

What is the HS code for synthetic sewing thread?

The HS code for sewing thread made of synthetic staple fibers is 550810.

What defines a product as sewing thread in the HS system?

It must be a multiple (folded) or cabled yarn, have a final "Z" twist, and be processed or finished in a way that makes it suitable for sewing (e.g., glazed or polished).