SITCSection 8
U.S. imports of slide fasteners (zippers) (SITC 89985) totaled $1.7M in April 2026, traded with 23 countries.
Importers of Slide Fasteners (Zippers) paid $431K in duties in April 2026 — an effective duty rate of 26% on $1.6M in dutiable value, based on actual customs collections rather than the published tariff schedule. Slide Fasteners (Zippers) imports of $1.7M in April 2026 ran 36% above the year-to-date monthly average of $1.3M.
Last updated: April 2026 dataSlide fasteners — commonly known as zippers — are a high-volume apparel and soft-goods trim input with significant Section 301 tariff exposure for shipments of Chinese origin, making supplier diversification a recurring procurement consideration for US importers. Classification at the HTS level turns on the fastener's construction material (metal teeth versus plastic/coil) and whether the fastener is presented by the meter or as finished units, each carrying distinct duty treatment. Zipper specifications — tooth material, tape width, pull type, and chain length — are tightly controlled by apparel and luggage buyers and must be accurately reflected in commercial documentation.
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At the HTS level, slide fasteners are subdivided by the material of the interlocking elements: metal-tooth zippers and plastic or synthetic-coil zippers fall under different tariff lines with potentially different duty rates. The tape material is secondary; the tooth or coil material is the primary classification criterion.
Standard commercial documentation — commercial invoice, packing list, and bill of lading — should specify tooth material, tape width, unit length or meterage, and country of origin. For shipments subject to Section 301 measures, a precise country-of-origin declaration is essential, and importers should retain supplier certifications to support any origin claims in the event of a CBP inquiry.
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Monthly import values over time