Screw hooks and screw rings

HTS code 7318.13.00 covers screw hooks and screw rings made of iron or steel. This code should be used when importing these items, with a general duty rate of 5.7%—though preferential rates may apply based on the country of origin and any applicable free trade agreements.

Detailed information for HTS Code 7318.13.00

This tariff schedule covers articles of iron or steel within Chapter 73, specifically focusing on threaded articles like screws, bolts, and hooks. Code 7318.13.00 details screw hooks and screw rings made of iron or steel. This code is further divided based on the diameter of the shank or thread: 7318.13.00.30 covers items less than 6mm in diameter, while 7318.13.00.60 covers those 6mm or greater; be sure to select the correct statistical suffix based on this diameter measurement. Duty rates are generally 5.70%, but may be free for goods originating from certain countries participating in eligible free trade agreements.

Chapter	Chapter 73 - Articles of iron or steel
Section	Section XV - Base Metals and Articles of Base Metal

Duty snapshot

Quick reference for the duty outcomes tied to this HTS line.

General Duty

5.70%

Standard trade partners (NTR)

Special Duty

Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

Eligible FTA or preference programs

The general duty rate for HTS code 7318.13.00 and its subdivisions, 7318.13.00.30 (shanks/threads < 6mm) and 7318.13.00.60 (shanks/threads ≥ 6mm), is 5.70% applied to the reported weight in kilograms. Special rates of “Free” apply for goods originating from specific countries (A, AU, B, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) and are contingent on eligibility under relevant Free Trade Agreements or preference programs; otherwise, the general rate applies. Section or other specific duty information is not specified.

Rate of Duty (Column 2): 45%

Need help importing?
_

Submit your details, and our team will confirm the correct classification and answer your questions.

Code subdivisions

7318.13.00.30

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: > Threaded articles: > Screw hooks and screw rings > Having shanks or threads with a diameter of less than 6 mm

7318.13.00.60

View HTS reference

Chapter & section notes

Chapter notes

Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes CHAPTER 73 ARTICLES OF IRON OR STEEL XV 73-1 Notes 1. In this chapter the expression "cast iron" applies to products obtained by casting in which iron predominates by weight over each of the other elements and which do not comply with the chemical composition of steel as defined in Note 1(d) to chapter 72. 2. In this chapter the word "wire" means hot- or cold-formed products of any cross-sectional shape, of which no cross-sectional dimension exceeds 16 mm. Additional U.S. Notes 1. For the purposes of heading 7304 or 7306, the rate of duty "Free (C)" appearing in the "Special" subcolumn applies only to tubes and pipes with attached fittings, suitable for conducting gases or liquids. 2. For the purposes of subheading 7307.19.30, the expression "ductile fittings" refers to fittings which contain over 2.5 percent carbon and over 0.02 percent of magnesium or of magnesium and cerium, by weight. Statistical Note 1. For the purposes of statistical reporting numbers 7310.10.0005, 7310.29.0020 and 7310.29.0055, “refillable stainless steel kegs, whether or not pressurized” refers to cylindrical kegs for liquid beverages, each keg with a domed top and bottom and a single neck piece, designed for a coupler (valve) system and an extractor tube (spear) by which the keg can be cleaned, filled and dispense the liquid contents. Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes XV 73-2

Section notes

SECTION XV BASE METALS AND ARTICLES OF BASE METAL XV-1 Notes 1. 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) Ferrocerium or other pyrophoric alloys (heading 3606); (c) Headgear or parts thereof of heading 6506 or 6507; (d) Umbrella frames or other articles of heading 6603; (e) Goods of

Latest update

Last updated

November 15, 2025

Revised every January & July

Let's get your shipment cleared

Submit your details and our team will help with classification and compliance.