Polyester Weed Trimmer Line Monofilament
High-strength polyester monofilament with cross-section over 1 mm, supplied in bulk spools for string trimmers and lawn edgers. HTS 3916.90.3000 covers this as monofilament of other plastics (polyesters), not further worked. Polymer composition follows predominance rule for ethylene terephthalate units.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If flexible tubes or hoses of plastics
If formed into continuous hollow profiles resembling tubes, it may classify under 3917 instead of solid monofilament rods.
If sold as finished trimmer refills under 38.1 cm width
Packaged retail spools qualify for special rates in 3921 if dimensions meet US note limits, as other plastic plates/sheets.
If twisted or finer than 1 mm
Processed or thin monofilaments enter textile yarns in Chapter 54.
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Import Tips & Compliance
• Measure and document diameter precisely to confirm >1 mm threshold; provide FTIR analysis for polyester confirmation; avoid importing pre-cut lengths to prevent shift to finished goods
Related Products under HTS 3916.90.30.00
Nylon Fishing Line Monofilament
Thick nylon monofilament used as fishing line, with a diameter exceeding 1 mm, ideal for heavy-duty angling. It falls under HTS 3916.90.3000 because it is a monofilament of polyamide plastics (other plastics) where any cross-sectional dimension exceeds 1 mm and is not further worked beyond surface treatments. This classification applies to unprocessed forms before braiding or weaving.
Polypropylene Brush Bristle Monofilament
Rigid polypropylene monofilament rods exceeding 1 mm in diameter, used for manufacturing industrial brush bristles. Classified in HTS 3916.90.3000 as a profile shape of other plastics (polypropylene), surface-worked but not further processed into finished brushes. Meets chapter notes for polymers where propylene monomer predominates.
Acrylic Monofilament Rods for Crafts
Transparent acrylic (PMMA) monofilament rods over 1 mm diameter, used in model making and craft projects. Falls under HTS 3916.90.3000 as monofilament of other plastics, meeting polymer note (a)(1) for ≥95% methyl methacrylate content. Surface-worked but not shaped further.
PVC Monofilament for Beading
Flexible polyvinyl chloride monofilament exceeding 1 mm cross-section, used as cord for beading and jewelry making. Classified in 3916.90.3000 as other plastic monofilament, with PVC vinyl chloride units predominating per subheading notes. Not further processed beyond extrusion.
Polyethylene Monofilament Fence Line
High-density polyethylene monofilament over 1 mm thick for electric fencing and agricultural barriers. HTS 3916.90.3000 applies to this ethylene polymer monofilament (other plastics), surface-worked only. Predominates ethylene monomer units.
Polystyrene Monofilament Stir Sticks
Extruded polystyrene monofilament rods >1 mm diameter, basic form for drink stirrers before cutting. Under HTS 3916.90.3000 as other plastic monofilament/profile shapes, styrene monomer ≥95%. Not constituting finished articles.