Harmonized System
U.S. exports of Threaded Copper Screws, Bolts & Nuts (Including Iron/Steel with Copper Heads) (HS 741533) totaled $6.8M in August 2026.
Importers of Threaded Copper Screws, Bolts & Nuts (Including Iron/Steel with Copper Heads) paid $3.0M in duties in August 2026, an average duty rate of 55.46% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataThreaded screws, bolts, and nuts of copper — or of iron/steel fitted with copper heads — are classified across five 10-digit lines that distinguish wood screws (7415330500), Muntz or yellow metal bolts (7415331000), and general threaded fasteners subdivided by shank-thread diameter relative to 6mm (7415338010 and 7415338050), plus a residual line (7415338550). Muntz metal, a high-zinc brass alloy, has its own dedicated line due to its historical use in marine and architectural applications. Taiwan leads US supply, with China and India also significant. The diameter-based split between 7415338010 (over 6mm) and 7415338050 (under 6mm) is a common classification decision point for importers of general-purpose copper bolts.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
506 import shipments a month
Muntz metal is a high-zinc brass alloy (approximately 60% copper, 40% zinc) historically used for ship sheathing, condenser tubes, and architectural hardware due to its strength and marine corrosion resistance. Its dedicated line (7415331000) reflects its distinct alloy composition and long-standing commercial identity separate from standard brass or pure copper fasteners.
The shank-thread diameter of the bolt — not the head diameter or overall length — determines whether the article falls under 7415338010 (over 6mm) or 7415338050 (under 6mm). Importers should measure the nominal thread diameter as specified in the product standard or technical drawing and document that measurement in their classification records.
Subheading 1 of 5 in heading 7415
Subheading 741533 · $6.8M of $11.7M
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 |
|---|---|---|---|---|---|
| 7415338010 | Thrd Scrws Nts Blts NESOI Cu Hvg Sh Th 6mm Ov Diam | $3.6M | 55.61% | 99.40% | $2.0M |
| 7415338050 | Thr Cu Scrws Nts Blts NESOI W S T H Un 6mm Diam | $1.5M | 55.24% | 99.60% | $853K |
| 7415331000 | Muntz or Yellow Metal Bolts, Copper | $93K | 49.44% | 100.00% | $46K |
| 7415330500 | Threaded Copper Screws for Wood | $52K | 62.93% | 100.00% | $33K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7415338550 | Other Copper Screws (Not for Wood) Bolts and Nuts | $5.7M |
| 7415330500 | Threaded Copper Screws for Wood | $1.0M |
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.
Trade Directory
List your company under HS 741533 — Threaded Copper Screws, Bolts & Nuts (Including Iron/Steel with Copper Heads), so the companies trading it can find you. Be the first supplier listed.
Exports · August 2026
destination
Mexico and Canada together take 88% of it.
customs district
origin
entry
rate provision · imports
0.5% enters free of duty; duty collected equals 55.46% of imports for consumption.
ImportsExports
Imports
$5.5MYoY · free account
Exports
$6.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $60.1M of Threaded Copper Screws, Bolts & Nuts (Including Iron/Steel with Copper Heads) and exported $48.6M.
Through August 2026. Source: U.S. Census Bureau.