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Aluminum Lock Washers Spring Type

Helical spring lock washers that bite into nut/bolt for vibration resistance. Aluminum for weight savings. HTS 7616.10.90.90 washers.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6%+75.0%81%
🇲🇽Mexico6%+50.0%56%
🇨🇦Canada6%+50.0%56%
🇩🇪Germany6%+50.0%56%
🇯🇵Japan6%+50.0%56%

Alternative Classifications

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

7318.21Lower: 15.8% vs 81%

If steel lock washers

Iron/steel washers in Chapter 73.

7616.91Lower: 12.5% vs 81%

If formed from wire

Wire products specific subheading.

8503.00Lower: 13% vs 81%

If electrical motor parts

End-use parts classification.

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Import Tips & Compliance

• ID/OD/wire diameter precise measurements

• Load/deflection curve data

• Distinguish internal vs. external teeth

Related Products under HTS 7616.10.90.90

Aluminum Cotter Pins for Machinery

Split-pin aluminum cotter pins secure bolts in heavy machinery like tractors and engines. Classified under HTS 7616.10.90.90 as cotter pins, which are 'similar articles' of aluminum excluded from heading 8305. Typically made from unalloyed or alloyed aluminum for corrosion resistance.

Aluminum Washers for Construction

Flat and lock washers from aluminum sheet used under bolts in building frameworks. Falls under HTS 7616.10.90.90 as explicitly listed washers of aluminum. Provides electrical isolation and corrosion protection.

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Narrow crown aluminum staples for securing fabric to wooden furniture frames. HTS 7616.10.90.90 includes staples (except heading 8305) made of aluminum. Corrosion-resistant for indoor/outdoor furniture.

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Hex head bolts from 6061 aluminum alloy for mounting electrical panels. Classified HTS 7616.10.90.90 as bolts of aluminum, providing non-sparking properties. Meets NEMA enclosure standards.

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M8 hex nuts machined from 2024 aluminum alloy for racing car suspension. HTS 7616.10.90.90 explicitly lists nuts of aluminum. Lightweight weight-saving design.

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