HTS code 9902.12.04 covers "Fasteners of nylon or of polypropylene, with a filament length of 6 mm or more but not over 127 mm, presented on clips each holding the quantity of 25, 50 or 100 pieces, suitable for use in a mechanical attaching device (provided for in subheading 3926.90.85) " under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.