HS Code for Aluminum Parts
"Aluminum parts" spans several places in the HTSUS, so the heading depends on what the part is and what it is for. Aluminum structures and parts of structures, including windows, doors and their frames, point toward heading 7610, while aluminum fasteners, castings, forgings and other fabricated articles not named elsewhere point toward heading 7616. Parts designed specifically for a machine, vehicle or appliance often follow that product's own parts heading instead of chapter 76. General rates in the featured lines run from about 2.5% to 6%, and identifying the part's function is the first step in exploring the most appropriate code.
HTS Codes for Aluminum Parts
| HTS Code | Description | Duty Rate |
|---|---|---|
| 7610.10.00.10 | Aluminum windows and their frames Aluminum window units and window frames for buildings | 5.7% |
| 7610.10.00.30 | Aluminum doors and their frames (other than windows and thresholds) Aluminum doors and door frames, including sliding and storefront door assemblies | 5.7% |
| 7610.10.00.20 | Aluminum thresholds for doors Aluminum door thresholds | 5.7% |
| 7610.90.00.20 | Aluminum sheet-metal roofing, siding, flooring, and roof guttering and drainage equipment Aluminum roofing panels, siding, gutters and downspouts | 5.7% |
| 7610.90.00.40 | Aluminum architectural and ornamental work Aluminum curtain wall, railings, louvers and other architectural or ornamental structural work | 5.7% |
| 7610.90.00.80 | Other aluminum structures and parts of structures Other aluminum structures and structural parts, such as frameworks, towers, scaffolding parts and prepared structural members | 5.7% |
| 7616.10.30.00 | Aluminum rivets Rivets of aluminum | 4.7% |
| 7616.10.70.30 | Aluminum threaded fasteners having shanks, threads or holes over 6 mm in diameter Aluminum bolts, screws and nuts with a diameter over 6 mm | 5.5% |
| 7616.10.90.30 | Aluminum threaded fasteners, other (6 mm or less in diameter) Smaller aluminum bolts, screws and nuts, 6 mm or less in diameter | 6% |
| 7616.99.51.60 | Other articles of aluminum: castings Aluminum castings not more specifically provided for elsewhere | 2.5% |
| 7616.99.51.70 | Other articles of aluminum: forgings Aluminum forgings not more specifically provided for elsewhere | 2.5% |
| 7616.99.51.90 | Other articles of aluminum, not elsewhere specified Other fabricated aluminum articles and parts not named more specifically in the tariff (for example machined brackets and enclosures) | 2.5% |
How to Approach Classification for Aluminum Parts
Aluminum parts are not gathered in one heading, so the first question is what the part does. Chapter 76 of the HTSUS covers aluminum and articles of aluminum, but a part that is designed for a specific machine, vehicle or appliance is often classified with that product's parts rather than as an article of aluminum. The notes to Sections XV, XVI and XVII steer this: parts suitable for use solely or principally with a particular machine (for example an engine, a pump or a motor vehicle) generally point toward that machine's parts provision in chapters 84, 85 or 87, while general-purpose aluminum articles stay in chapter 76.
For building and construction parts, the key heading is 7610, aluminum structures and parts of structures. Windows and their frames, doors and their frames, and door thresholds point toward 7610.10, which is where aluminum windows typically fall. Roofing, siding, gutters and drainage equipment, architectural and ornamental work (curtain wall, railings, louvers), and other structures and structural parts point toward 7610.90. Plates, rods, profiles and tubes that have been prepared for use in structures also point toward heading 7610 rather than the semi-finished headings.
For fasteners and hardware, heading 7616 provides for aluminum nails, tacks, staples, screws, bolts, nuts, rivets, cotters and washers under 7616.10. Rivets have their own line, and threaded fasteners split by whether the shank, thread or hole diameter is over 6 mm. This is the aluminum counterpart to the steel fastener heading 7318, which covers iron or steel only.
Other aluminum parts and articles that are not named more specifically fall to the residual provision 7616.99, where the statistical suffixes separate castings, forgings, articles of wire and other articles. A machined bracket, cast housing or forged fitting that is not dedicated to a specific machine often points toward these 7616.99.51 lines. Before settling there, it is worth checking for a more specific heading, such as kitchen and household articles of aluminum under heading 7615 or aluminum containers under heading 7612.
Unworked or semi-finished forms are a separate question. Aluminum that is still a bar, rod, profile, sheet, foil or tube, and not yet made into a part, points toward the semi-fabricated headings 7604 to 7608 rather than 7610 or 7616. A practical approach is to identify whether the item is semi-finished material, a structural part, a fastener, a dedicated part of a machine or vehicle, or another fabricated article, and then explore the matching heading.
Duty Rate Overview
General duty rates for aluminum parts are moderate. Aluminum structures and parts of structures under heading 7610, including windows, doors and their frames, are around 5.7%. Aluminum rivets are around 4.7%, threaded fasteners over 6 mm in diameter around 5.5%, and smaller threaded fasteners around 6%, while castings, forgings and other articles under 7616.99.51 are around 2.5%. Preferential rates under free trade agreements may reduce or eliminate these duties for qualifying origins.
These are the general (MFN) rates only, and for aluminum they are rarely the whole picture. Section 232 measures on aluminum and aluminum derivative products may apply to many of these articles, Section 301 or IEEPA duties may apply depending on origin, and antidumping and countervailing duty orders on aluminum extrusions can reach some fabricated aluminum parts and window or door components, so those are worth reviewing separately. These figures are estimates for general planning purposes only.