7318.15.50.90—Other screws and bolts, whether or not with their nuts or washers, studs, other
General
Free
Units
kg
Column 2
45%
Special
—
7318.15.50.90—Other screws and bolts, whether or not with their nuts or washers, studs, otherGeneral
Free
Units
kg
Column 2
45%
Special
—
Supplier development
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Exporting to the United States
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HTS 7318.15.50.90 is the U.S. Harmonized Tariff Schedule classification for Other screws and bolts, whether or not with their nuts or washers, studs, other. It's a 10-digit statistical line in Chapter 73: Articles of iron or steel, Section XV: Base Metals and Articles of Base Metal, used by U.S. Customs and Border Protection to determine the duty rate at entry. 11 Chapter 99 flags link to this code (3 active, 8 expired), and 12 potentially relevant AD/CVD order flags link to this code. A Chapter 99 flag is not a shipment-level determination; origin, product facts, claims, and entry date control whether a provision applies.
New to HTS codes? Read our guide on how HTS classification works →
Chapter 99 flags linked to this code; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.80.03 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 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% |
| 9903.81.90 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.92 | section_232Expired | The duty provided in the applicable subheading. |
| 9903.81.93 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.97 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.99 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.82.02 | section_232Active | 50% |
| 9903.82.04 | section_232Active | 25% |
| 9903.82.15 | section_232Active | 10% |
HTS-linked orders that may be relevant to imports under this code. An HTS link is a screening aid; actual coverage depends on each order's written product scope. Run the AD/CVD lookup → to check whether your specific shipment is in scope.
Steel Nails
Steel Nails
Steel Nails
Steel Nails
Carbon and Alloy Steel Threaded Rod
Carbon and Alloy Steel Threaded Rod
Carbon and Alloy Steel Threaded Rod
Steel Threaded Rod
Carbon and Alloy Steel Threaded Rod
Alloy and Certain Carbon Steel Threaded Rod
Alloy and Certain Carbon Steel Threaded Rod
Certain Corrosion-Resistant Steel Products from India
Past CBP decisions classifying real products under this HTS code. Useful precedent when classifying a similar product — each ruling shows how CBP interpreted the code for a specific case.
The tariff classification of a Cylinder Head Stud Kit from India
The tariff classification of a carbon steel stud from Taiwan
The tariff classification of a steel hanger bolt from Taiwan
The tariff classification of a threaded fastener from Taiwan.
The tariff classification of steel stay rods/studs from China
Source: CBP CROSS (view all rulings on rulings.cbp.gov →)
HTS 7318.15.50.90 is the U.S. Harmonized Tariff Schedule classification for Other screws and bolts, whether or not with their nuts or washers, studs, other. It belongs to Chapter 73 of the HTSUS.
The general (Column 1) duty rate for HTS 7318.15.50.90 is Free. This is the most-favored-nation (MFN) rate that applies to imports from World Trade Organization member countries.
The Column 2 rate for HTS 7318.15.50.90 is 45%. This rate applies to imports from countries that do not have normal trade relations with the United States (currently Belarus, Cuba, North Korea, and Russia).
Tandom links section_232 provision 9903.80.03 to HTS 7318.15.50.90. Its published rate notation is The duty provided in the applicable subheading + 25%, and its status on 2026-09-05 is expired. 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.
Tandom links 12 potentially relevant AD/CVD order flags to this code: C-523-817 (CVD, Oman), C-542-805 (CVD, Sri Lanka), C-533-905 (CVD, India) plus 9 more. An HTS link is a screening aid; review each order's written scope and linked case materials to determine whether a product is covered.
Section and chapter notes that govern this code
This section does not cover: (a) Prepared paints, inks, or other products with a basis of metallic flakes or powder (headings 3207 to 3210, 3212, 3213, or 3215); (b) Ferro-cerium and other pyrophoric alloys (heading 3606); (c) Headgear and parts thereof of heading 6506 or 6507; (d) Umbrella frames or other articles of heading 6603; (e) Goods of chapter 71 (for example, precious-metal alloys, base metal clad with precious metal, imitation jewelry); (f) Articles of section XVI (machinery, mechanical appliances, and electrical equipment); (g) Assembled railway or tramway track (heading 8608); (h) Articles of section XVII (vehicles, aircraft, vessels); (ij) Instruments or apparatus of section XVIII (clocks, optical, musical, arms); (k) Lead shot prepared for ammunition (heading 9306); (l) Articles of section XX (furniture, toys, games, sports); or (m) Hand sieves, buttons, pens, pencil holders, pen nibs, monopods, bipods, tripods, and similar articles of section XX.
Throughout this schedule, the expression 'parts of general use' means: (a) Articles of heading 7307, 7312, 7315, 7317, or 7318, and similar articles of other base metal; (b) Springs and leaves for springs, of base metal, other than clock or watch springs (heading 9114); and (c) Articles of headings 8301, 8302, 8308, 8310.
Throughout this schedule, the expression 'base metals' means: iron and steel, copper, nickel, aluminum, lead, zinc, tin, tungsten (wolfram), molybdenum, tantalum, magnesium, cobalt, bismuth, cadmium, titanium, zirconium, antimony, manganese, beryllium, chromium, germanium, vanadium, gallium, hafnium, indium, niobium (columbium), rhenium, and thallium.
Tandom guides relevant to this code
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
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
A practical workflow for checking antidumping and countervailing duty exposure on a US entry. For brokers and ops teams who need the answer before filing.
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
Wire the Tandom AD/CVD lookup into Claude as a Model Context Protocol tool. Real JSON-RPC traces, the tool list, and a worked example, in 2026.
Open resource
How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.
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