9607.19.00.40 - Fitted with continuous plastic filament

This HTS classification, 9607.19.00.40, specifically covers slide fasteners (also known as zippers) that are constructed with a continuous plastic filament as their primary component for the interlocking elements. These fasteners are characterized by their ability to be opened and closed via a slider mechanism that moves along the plastic filament, which forms the "teeth" of the fastener. This category is distinct from other subheadings within 9607.19 because the defining feature is the material and form of the interlocking elements – a continuous plastic filament, rather than individual plastic scoops.

While sibling categories like 9607.19.00.20 cover fasteners fitted with chain scoops of plastic, and 9607.19.00.60 encompasses other slide fasteners not otherwise specified, this particular heading is reserved for those where the continuous plastic filament itself forms the functional teeth of the zipper. The key differentiator lies in the construction of the interlocking mechanism. This is a leaf node in the HTS classification structure, meaning there are no further subdivisions within this specific category. Classification here relies on the direct observation of the continuous plastic filament forming the interlocking elements of the slide fastener.