U.S. exports of Non-Threaded Fasteners of Iron or Steel (NESOI) (HS 731829) totaled $54.4M in August 2026.
Importers of Non-Threaded Fasteners of Iron or Steel (NESOI) paid $13.4M in duties in August 2026, an average duty rate of 50.49% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataClassified under a single residual line (7318290000), this heading captures non-threaded iron and steel fasteners — such as snap rings, retaining rings, spring clips, and other mechanical retention devices — that are not more specifically described by another heading in Chapter 73. China leads US imports, followed by Canada, Taiwan, Japan, and Germany, reflecting a broad supply base spanning commodity stampings to precision-engineered retention hardware. Because this is a catch-all line, CBP scrutiny of whether an article belongs in a more specific heading (e.g., rivets under 731823 or cotters under 731824) is a recurring classification risk.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
3.8K import shipments a month
Common examples include snap rings (circlips), retaining rings, spring clips, hairpin clips, and similar retention devices that do not qualify as rivets (731823), cotters (731824), washers (731821/731822), or pins (731940). The residual nature of 731829 means the importer must first confirm the article does not fit a named heading before defaulting to this classification.
Importers should retain technical drawings, product specifications, and a written classification analysis demonstrating that the article is (a) of iron or steel, (b) non-threaded, (c) functions as a fastener, and (d) is not more specifically described elsewhere in Chapter 73. For high-volume or high-value shipments, a CBP binding ruling provides the strongest protection against reclassification at the port of entry.
Subheading 3 of 12 in heading 7318
Subheading 731829 · $54.4M of $543.4M
Trade Directory
List your company under HS 731829 — Non-Threaded Fasteners of Iron or Steel (NESOI), so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7318290000 | Oth Non-Threaded Articles (Fastnrs) Irn/Stl NESOI | $26.4M | 50.49% | 97.02% | $13.4M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7318290000 | Oth Non-Threaded Articles (Fastnrs) Irn/Stl NESOI | $54.4M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Mexico and Canada together take 45% of it.
customs district
origin
entry
rate provision · imports
2.8% enters free of duty; duty collected equals 50.49% of imports for consumption.
ImportsExports
Imports
$27.2MYoY · free account
Exports
$54.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $304.5M of Non-Threaded Fasteners of Iron or Steel (NESOI) and exported $562.7M.
Through August 2026. Source: U.S. Census Bureau.