Copper Alloy Hex Nuts 1/4-20 UNC
These 1/4-20 UNC hex nuts are forged from copper-zinc brass alloy, providing excellent conductivity and resistance to dezincification in electrical and marine uses. HTS 7415.33.80 covers these as 'nuts' of copper, distinct from iron/steel equivalents. Composition adheres to brass definition with zinc > other elements and nickel <5%.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If iron or steel with copper plating only
Surface copper plating on steel bases classifies as steel under substantial transformation rules, not pure copper alloy.
If machine screws rather than nuts
Full-length threaded machine screws have dedicated subheading 7415.32, separate from nuts.
If in retail chain sets
Copper articles in consumer packs (e.g., nut-bolt chains) may go to 7419.10 as chain rather than individual nuts.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Use commercial invoices specifying UNC thread standard and exact alloy grade (e.g
• C36000)
• Obtain pre-shipment approvals for lead-free compliance if destined for potable water systems
• Separate copper nuts from mixed metal shipments to avoid blended duty calculations
Related Products under HTS 7415.33.80
M6 Brass Hex Head Cap Screws
These M6 brass hex head cap screws are fully threaded fasteners made from copper-zinc alloy (brass) with a hexagonal head for wrench tightening. They fall under HTS 7415.33.80 as 'other screws and bolts' of copper, specifically designed for corrosion-resistant applications in marine and plumbing fixtures. The brass composition meets the subheading note for copper-zinc base alloys where zinc predominates over other elements.
Brass Wing Nuts M8
M8 brass wing nuts feature thumb-turn wings for hand-tightening, made from copper-zinc base alloy suitable for decorative and low-torque applications. Classified under HTS 7415.33.80 as 'nuts' of copper, they provide corrosion resistance in furniture assembly and lighting fixtures. Alloy meets definition (a) with zinc predominant and no excessive nickel or tin.
Brass Lag Bolts 5/16 x 3 Inch
5/16 x 3 inch brass lag bolts feature coarse wood threads and hex heads for heavy-duty anchoring in docks and outdoor structures. They qualify under HTS 7415.33.80 as 'other bolts' of copper alloy, valued for non-magnetic and corrosion-resistant properties. Brass per note (a): copper-zinc with controlled other elements.
Decorative Brass Thumb Screws M4
M4 decorative brass thumb screws have knurled heads for finger tightening, used in electronics enclosures and instrument panels. HTS 7415.33.80 includes these as 'other screws' of copper, prized for aesthetics and conductivity. Alloy is copper-zinc brass per subheading definition.
Brass Cap Nuts 3/8-16 UNF
3/8-16 UNF brass cap nuts feature acorn-shaped closed ends to protect threads and enhance appearance in visible assemblies. Classified in HTS 7415.33.80 as copper 'nuts', ideal for automotive and architectural hardware. Meets brass criteria: zinc dominant, tin <3%, nickel <5%.
Marine Grade Brass Machine Bolts 10-24
10-24 machine bolts in marine-grade C46400 naval brass offer superior strength against seawater corrosion for boat hardware. HTS 7415.33.80 covers these copper alloy 'bolts', with zinc predominant per note (a). Partially threaded design suits through-bolting applications.