U.S. import tariffs · heading 7318

Heading 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers…

Every line of heading 7318 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel

Chapter 73: Articles of iron or steel. Schedule checked on November 8, 2026.

Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →

Tariff lines

HTS codeOfficial descriptionGeneral rate
7318.11.00.00Coach screws12.5%
7318.12.00.00Other wood screws12.5%
7318.13.00Screw hooks and screw rings5.7%
7318.13.00.30Having shanks or threads with a diameter of less than 6 mm
7318.13.00.60Having shanks or threads with a diameter of 6 mm or more
7318.14Self-tapping screws:
7318.14.10Having shanks or threads with a diameter of less than 6 mm6.2%
7318.14.10.30Of stainless steel
7318.14.10.60Other
7318.14.50Having shanks or threads with a diameter of 6 mm or more8.6%
7318.14.50.20Of stainless steel
7318.14.50.80Other
7318.15Other screws and bolts, whether or not with their nuts or washers:
7318.15.20Bolts and bolts and their nuts or washers entered or exported in the same shipmentFree
7318.15.20.10Having shanks or threads with a diameter of less than 6 mm
7318.15.20.20Track bolts
7318.15.20.30Structural bolts
7318.15.20.41Right-angle anchor bolts
7318.15.20.46Other
7318.15.20.51Of stainless steel
7318.15.20.55Other
7318.15.20.61Of stainless steel
7318.15.20.65Other
7318.15.20.91Of stainless steel
7318.15.20.95Other
7318.15.40.00Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws)Free
7318.15.50StudsFree
7318.15.50.30Of stainless steel
7318.15.50.51Of alloy steel
7318.15.50.56Other
7318.15.50.90Other
7318.15.60Having shanks or threads with a diameter of less than 6 mm6.2%
7318.15.60.10Of stainless steel
7318.15.60.40Other
7318.15.60.70Of stainless steel
7318.15.60.80Other
7318.15.80Having shanks or threads with a diameter of 6 mm or more8.5%
7318.15.80.20Set screws
7318.15.80.30Of stainless steel
7318.15.80.45Other
7318.15.80.55Of stainless steel
7318.15.80.66Cap screws
7318.15.80.69Other
7318.15.80.82Of stainless steel
7318.15.80.85Other
7318.16.00NutsFree
7318.16.00.15Non-locking chrome-plated
7318.16.00.30Locking
7318.16.00.45Other
7318.16.00.60Of stainless steel
7318.16.00.85Other
7318.19.00.00Other5.7%
7318.21.00Spring washers and other lock washers5.8%
7318.21.00.30Helical spring lock washers
7318.21.00.90Other
7318.22.00.00Other washersFree
7318.23.00.00RivetsFree
7318.24.00.00Cotters and cotter pins3.8%
7318.29.00.00Other2.8%

Public records · unclaimed listings

U.S. manufacturers in this industry, from public records

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Exporting this product from the U.S.?

Exports are reported with Schedule B numbers. Heading 7318 has 14 of them; the first 12 are below. Schedule B lookup →

Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.

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