Schedule in force 2026-08-31HTS 2026HTSRev17HTS 7318 · Chapter 73
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HTS 7318

Heading 7318 covers screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel. Duty is assessed at the 10-digit statistical line; the figures here are resolved for 7318.11.00.00, the first line under this heading. Its Column 1 rate is 12.5%; other lines under 7318 carry different Column 1 rates. On top of that, the ad valorem total depends on origin: China carries 100.00% and Italy carries 62.50%.

Chapter 73 · Verified 2026-08-31
HTS 2026HTSRev17

48 statistical lines under this heading · 5 distinct Column 1 rates · highest ad valorem total 100.00% from China · lowest 62.50% from Italy

OriginAd valorem layersLayersReported under
China CHN100.00%mfn + s232 + s301 + s3019903.88.03 9903.05.31 9903.82.02
Vietnam VNM75.00%mfn + s232 + s3019903.05.84 9903.82.02
Thailand THA75.00%mfn + s232 + s3019903.05.77 9903.82.02
Brazil BRA75.00%mfn + s232 + s3019903.05.27 9903.82.02
Mexico MEX72.50%mfn + s232 + s3019903.05.55 9903.82.02
Canada CAN72.50%mfn + s232 + s3019903.05.29 9903.82.02
India IND72.50%mfn + s232 + s3019903.05.44 9903.82.02
United Kingdom GBR72.50%mfn + s232 + s3019903.05.81 9903.82.02
Germany DEU62.50%mfn + s232 + s3019903.05.38 9903.82.02
Japan JPN62.50%mfn + s232 + s3019903.05.48 9903.82.02
South Korea KOR62.50%mfn + s232 + s3019903.05.70 9903.82.02
Italy ITA62.50%mfn + s232 + s3019903.05.38 9903.82.02
Table 1Rate by country of origin for 7318.11.00.00, resolved 2026-08-31. The first statistical line under 7318; other lines may carry different Column 1 rates.
CodeDescriptionColumn 1SpecialUnits
7318.11.00.00Coach screws12.5%Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG)kg
7318.12.00.00Other wood screws12.5%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)kg
7318.13.00.30Having shanks or threads with a diameter of less than 6 mminherited—kg
7318.13.00.60Having shanks or threads with a diameter of 6 mm or moreinherited—kg
7318.14.10.30Of stainless steelinherited—kg
7318.14.10.60Otherinherited—kg
7318.14.50.20Of stainless steelinherited—kg
7318.14.50.80Otherinherited—kg
7318.15.20.10Having shanks or threads with a diameter of less than 6 mminherited—kg
7318.15.20.20Track boltsinherited—kg
7318.15.20.30Structural boltsinherited—kg
7318.15.20.41Right-angle anchor boltsinherited—kg
7318.15.20.46Otherinherited—kg
7318.15.20.51Of stainless steelinherited—kg
7318.15.20.55Otherinherited—kg
7318.15.20.61Of stainless steelinherited—kg
7318.15.20.65Otherinherited—kg
7318.15.20.91Of stainless steelinherited—kg
7318.15.20.95Otherinherited—kg
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—kg
7318.15.50.30Of stainless steelinherited—kg
7318.15.50.51Of alloy steelinherited—kg
7318.15.50.56Otherinherited—kg
7318.15.50.90Otherinherited—kg
7318.15.60.10Of stainless steelinherited—kg
7318.15.60.40Otherinherited—kg
7318.15.60.70Of stainless steelinherited—kg
7318.15.60.80Otherinherited—kg
7318.15.80.20Set screwsinherited—kg
7318.15.80.30Of stainless steelinherited—kg
7318.15.80.45Otherinherited—kg
7318.15.80.55Of stainless steelinherited—kg
7318.15.80.66Cap screwsinherited—kg
7318.15.80.69Otherinherited—kg
7318.15.80.82Of stainless steelinherited—kg
7318.15.80.85Otherinherited—kg
7318.16.00.15Non-locking chrome-platedinherited—kg
7318.16.00.30Lockinginherited—kg
7318.16.00.45Otherinherited—kg
7318.16.00.60Of stainless steelinherited—kg
7318.16.00.85Otherinherited—kg
7318.19.00.00Other5.7%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.85% (JP)kg
7318.21.00.30Helical spring lock washersinherited—kg
7318.21.00.90Otherinherited—kg
7318.22.00.00Other washersFree—kg
7318.23.00.00RivetsFree—kg
7318.24.00.00Cotters and cotter pins3.8%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)kg
7318.29.00.00Other2.8%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)kg
Table 2Statistical suffixes under 7318. Duty is assessed at the 10-digit level; the Column 1 rate is stated at the subheading and inherited below it.
ProgrammeRate as publishedContributionReported underIn force from
Column 1 General (MFN)12.5%12.50%—not established

Source: USITC, Harmonized Tariff Schedule of the United States, 2026 HTS Revision 17, published 2026-08-01. Verified 2026-08-31.

Section 232The duty provided in the applicable subheading + 50%50.00%9903.82.022025-06-04

Source: FEDERAL REGISTER, Proclamation 11021, adjusting imports of aluminum, steel and copper (FR Doc. 2026-06960), published 2026-04-09. Verified 2026-08-31.

Section 301The duty provided in the applicable subheading + 25%25.00%9903.88.032018-09-24
Status unconfirmed. The second statutory four-year review of this action is running. The continuation-request deadlines for the underlying 2018 actions closed on 2026-07-05 and 2026-08-22 and no continuation notice has been published. There is no evidence of termination either, and the duty is almost certainly still collectible; what we cannot do is cite a document saying so.

Source: USTR, Notice of Modification of Section 301 Action: China's Acts, Policies and Practices Related to Technology Transfer (List 3) (83 FR 47974), published 2018-09-21. Verified 2026-08-31.

Section 301The duty provided in the applicable subheading + 12.5%12.50%9903.05.312026-07-24

Source: USTR, Notice of Actions in Section 301 Investigations of Various Economies (FR Doc. 2026-15181), published 2026-07-28. Verified 2026-08-31.

Table 3Duty stack for 7318.11.00.00 from China, resolved 2026-08-31.

Common questions

What is the duty rate for HTS 7318?
Heading 7318 covers screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel. Duty is assessed at the 10-digit statistical line; the figures here are resolved for 7318.11.00.00, the first line under this heading. Its Column 1 rate is 12.5%; other lines under 7318 carry different Column 1 rates. On top of that, the ad valorem total depends on origin: China carries 100.00% and Italy carries 62.50%.
Why does the rate differ by country for the same HTS code?
The Column 1 rate is the same for every origin with normal trade relations. Trade-remedy duties under Sections 232, 301 and 338 are imposed by origin, by product, or by both, so two shipments of the same article from different countries can carry very different totals.
Is this the rate I will actually pay?
It is the rate that applies to this classification and origin on the date shown. The duty owed on a specific entry also depends on the 10-digit statistical suffix, declared content where a duty is content-based, preference eligibility, and any AD/CVD order in scope.