1/2-13 UNC Aluminum Machine Screws
Pan head machine screws in 1/2 inch (12.7 mm) diameter UNC threads, made from 6063 aluminum alloy for construction and automotive use. HTS 7616.10.70.30 due to threaded design and diameter exceeding 6 mm threshold for 'other' fasteners.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If threads/holes ≤6 mm
Diameter-based split in 7616.10.70; smaller sizes have different statistical suffix.
If as motor vehicle body parts
Vehicle-specific fasteners classify under auto parts chapter by end-use.
If considered aluminum profiles/bars rather than finished fasteners
Unfinished bars/profiles with threads may classify as semi-manufactures in 7604.
Not sure which classification is right?
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Import Tips & Compliance
• Country of smelt/melt declaration mandatory for aluminum under CBP aluminum import rules
• Avoid generic 'screw' descriptions; specify thread pitch/dia. to match subheading
• For quantities >1000 pcs, consider quota impacts from Section 232 tariffs
Related Products under HTS 7616.10.70.30
M10 Aluminum Hex Bolts
Hexagonal head bolts made from aluminum alloy with M10 (10 mm) diameter threads, used for securing components in marine and aerospace applications. Classified under HTS 7616.10.70.30 due to being threaded aluminum fasteners with threads over 6 mm in diameter. Exceeds pure aluminum purity limits, qualifying as an alloy.
1/4-20 UNC Aluminum Cap Screws
Cylindrical head socket cap screws from aluminum alloy with 1/4 inch (6.35 mm) major diameter threads for industrial machinery assembly. HTS 7616.10.70.30 applies as threaded fasteners exceeding 6 mm thread diameter, not qualifying as pure aluminum. Ideal for lightweight, corrosion-resistant fastening.
M12 Aluminum Lag Screws
Heavy-duty lag screws with 12 mm diameter threads and hex heads, made of aluminum alloy for wooden structural applications in corrosive environments. Falls under 7616.10.70.30 as 'threaded fasteners' with shanks/threads over 6 mm, distinct from smaller or non-threaded articles.
3/8 Inch Aluminum Eye Bolts
Eye bolts featuring a forged eye and 3/8 inch (9.5 mm) threaded shank from aluminum alloy, used for lifting and rigging. HTS 7616.10.70.30 covers these as 'threaded fasteners' due to shank/thread diameter over 6 mm and alloy composition.
M16 Aluminum Set Screws
Cylindrical headless set screws with 16 mm diameter cup point threads, aluminum alloy construction for adjustable machinery components. Qualifies for 7616.10.70.30 as threaded fasteners over 6 mm, per subheading for larger shanks/threads.
M20 Aluminum U-Bolts
U-shaped bolts with 20 mm diameter threads for pipe clamps and suspension systems, aluminum alloy for lightweight corrosion resistance. Classified in 7616.10.70.30 as threaded fasteners with shanks over 6 mm.