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HSChapter 73
U.S. exports of non-threaded fasteners of iron or steel (nesoi) (HS 731829) totaled $50.8M in July 2026.
Importers of Non-Threaded Fasteners of Iron or Steel (NESOI) paid $12.7M in duties in July 2026 — an effective duty rate of 52% on $24.7M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 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.
3.6K shipments/mo
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.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7318290000 | Oth Non-Threaded Articles (Fastnrs) Irn/Stl NESOI | $25.6M | 49.83% | 96.70% | $12.7M |
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 | $50.8M |
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.
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ImportsExports
Imports
$25.6MYoY · Pro
Exports
$50.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Mexico and Canada together take 47% of it.
customs district
origin
entry
rate provision · imports
1.7% enters free of duty; the effective duty rate is 49.83%.