HTS 73181100 — Coach screws
Imports classified under 73181100 — part of heading 7318, Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel, in Chapter 73 (Iron or steel articles). For this line, a general tariff of 12.5% applies. Preferential treatment is available under Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG).
Tariff rates for 73181100
| Rate type | Rate | Notes |
|---|---|---|
| General (Column 1) | 12.5% | Applies to countries without a preferential agreement, i.e. about 12.5% ad valorem on the customs value. |
| Special | Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) | Reduced or free rates for designated program countries (see code legend on the USITC site). |
| Column 2 | 25% | Statutory rate applied to the few economies without normal-trade-relations status. |
Reporting units
Entry summaries for 73181100 must be declared in: kg (kg = kilograms). A single quantitative measure accompanies the ad valorem component on the entry summary.
Frequently asked questions
Is there a Section 301 tariff on 73181100?
Section 301 actions apply by exact HTS line. This page shows the permanent schedule rate (12.5%) for 73181100; check the current 301 annexes or our dedicated Section 301 tariffs guide to see whether trade-remedy duties stack on top for your origin country.
What unit is used to declare 73181100?
US Customs declares 73181100 using the reporting unit(s) “kg” (kg = kilograms). When several units apply, each is reported on entry documents and may drive different ad-valorem-equivalent treatment.
Does 73181100 qualify for a free or reduced rate?
Many preferential programs reduce the general rate. The Special column above lists the program codes that qualify for duty-free or reduced treatment under recent trade agreements.
Related pages & tools
Data as of October 9, 2026 · Source: USITC Harmonized Tariff Schedule (line 7318.11.00.00). Rates are informational and not a binding customs ruling.