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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.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	5.5%	+35.0%	40.5%
🇲🇽Mexico	5.5%	+10.0%	15.5%
🇨🇦Canada	5.5%	+10.0%	15.5%
🇩🇪Germany	5.5%	+10.0%	15.5%
🇯🇵Japan	5.5%	+10.0%	15.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7307.99.50Lower: 39.3% vs 40.5%

If iron/steel pipe fittings version

Steel tube/pipe fittings classify in Chapter 73 fittings headings.

7616.99Lower: 12.5% vs 40.5%

If without complete threads or open profile

Incomplete threading shifts to sanitary/other aluminum articles.

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Import Tips & Compliance

• Include nuts if shipped together but declare as separate for correct fastener valuation

• Galvanic corrosion warnings on docs if paired with steel in end-use

• Pressure test certs needed if marketed for plumbing/pipe applications

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.