M6 Copper Hex Head Cap Screw
A fully threaded M6 (6mm diameter) hex head cap screw made entirely of copper alloy, used in marine and electrical applications requiring corrosion resistance. It falls under HTS 7415.33.80.10 because it is a copper screw with shank and threads 6 mm or more in diameter, distinct from smaller fasteners.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of steel or iron with copper plating only
Steel fasteners fall under Chapter 73; copper must be base material, not mere plating or head coating.
If shank, threads or holes under 6 mm diameter
Size threshold determines subheading; smaller diameter copper screws go to the other size category within 7415.33.
If imported as part of base metal mountings/habit fittings
If specifically for furniture or doors rather than general use, reclassified as hardware fittings under 8302.
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Import Tips & Compliance
• Verify copper alloy composition meets subheading note definitions (e.g
• brass or bronze) via material test reports to avoid reclassification
• Include detailed engineering drawings showing shank/thread dimensions ≥6mm for customs valuation and classification
Related Products under HTS 7415.33.80.10
M10 Copper Alloy Hex Nut
Heavy-duty M10 (10mm hole diameter) hex nut made from copper-nickel-zinc nickel silver alloy, used in high-corrosion shipbuilding. HTS 7415.33.80.10 applies to copper nuts with holes ≥6mm, meeting nickel silver definition in subheading note (c).
M6 Copper Eye Bolt
Forged M6 copper eye bolt for rigging and lifting, with 6mm shank and threaded end. Classified in HTS 7415.33.80.10 for copper threaded articles like screw hooks/bolts over 6mm diameter.
M8 Brass Flange Bolt
M8 integrated flange hex bolt in brass for plumbing fixtures, 8mm thread diameter. HTS 7415.33.80.10 due to copper alloy and size criteria.
M10 Copper U-Bolt
M10 U-bolt for pipe clamps, copper construction with 10mm legs/threads. Fits 7415.33.80.10 as threaded copper article.
M12 Brass Wing Nut
Hand-tightening M12 wing nut, brass, 12mm hole for electrical boxes. HTS 7415.33.80.10 for large copper nuts.
M8 Copper Set Screw
Socket head M8 set screw, copper for machinery adjustment. 7415.33.80.10 classification.