7318.15.80—Having shanks or threads with a diameter of 6 mm or moreGeneral duty rate
8.5%
Across 8 10-digit lines
Coverage on this page
Up one level: 7318.15 — Other screws and bolts, whether or not with their nuts or washers: (subheading)
HTS 7318.15.80 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Having shanks or threads with a diameter of 6 mm or more. It sits in Chapter 73: Articles of iron or steel, Section XV: Base Metals and Articles of Base Metal and rolls up 8 10-digit statistical lines, all with a general duty rate of 8.5%. 11 Chapter 99 flags link to one or more child lines (3 active, 8 expired).
Pick a line to view its exact rate and estimate duties and customs fees
Provisions linked to one or more lines under 7318.15.80; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.82.02 | section_232Active | 50% |
| 9903.82.04 | section_232Active | 25% |
| 9903.81.90 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.82.15 | section_232Active | 10% |
| 9903.81.92 | section_232Expired | The duty provided in the applicable subheading. |
| 9903.81.97 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.80.03 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.99 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.93 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.84 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.86 | section_232Expired | The duty provided in the applicable subheading + 25% |
HTS 7318.15.80 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Having shanks or threads with a diameter of 6 mm or more. It belongs to Chapter 73 and rolls up 8 10-digit statistical lines that brokers actually file at entry.
Every 10-digit line under HTS 7318.15.80 carries a general (Column 1) duty rate of 8.5%. Chapter 99 flags and potentially relevant AD/CVD order flags are shown at the per-line level; applicability depends on the shipment facts, written scope, and entry date.
Tandom links section_232 provision 9903.82.02 to HTS 7318.15.80. Its published rate notation is 50%, and its status on 2026-09-26 is active. 10 additional Chapter 99 flags also link to this code. A flag is not a shipment-level determination; check origin, product facts, claims, and entry date.
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader tariff item HTS 7318.15.80 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Tandom's current catalog view links no potentially relevant AD/CVD (antidumping or countervailing duty) order flags to lines under HTS 7318.15.80. Check current Commerce scope materials and Federal Register notices before relying on an HTS-only screen.
Tandom guides relevant to this code
Drop the Tandom Duty Calculator API into a TMS, broker software, or in-house ERP. Code samples, the response shape, and ACE reporting order, in 2026.
Open resource
Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.
Open resource
A working guide to the inputs, the layers, and the math behind a US entry summary in 2026. Written for brokers, forwarders, and importer compliance teams.
Open resource
Why raw LLM prompts fabricate stat suffixes, why MCP-augmented prompts do not, and the prompt template a broker can hand to Claude or ChatGPT today.
Open resource
When to file an eRulings request, what to put in it, where it goes, and how the binding effect works. Written for brokers and compliance teams.
Open resource
What changed April 6, 2026, what stayed the same, and how to file a steel, aluminum, or copper line in ACE without leaving duty exposure on the table.
Open resource