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HS Code 7318.16 : Threaded articles, Nuts

The 6-digit Harmonized System (HS) code for threaded articles, nuts is 7318.16. Under the 2026 Sri Lanka (Customs), the representative MFN general duty rate is coverage in progress [Sri Lanka Customs].

Chapter

Ch 73

Heading

7318

Subheading

7318.16

LK MFN Duty

coverage in progress

MODULE 3: SIGNATURE A: HS DECODE VISUAL HIERARCHY

Chapter 73

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel

Heading 7318

7318

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel

Subheading .16

.16

Threaded articles, Nuts

MODULE 4: SIGNATURE B: TARIFF MATRIX

Import Duty Rates by Destination

Sri Lanka (Sri Lanka Customs Tariff 2026)

7318.16

Representative General Duty

coverage in progress

Verified July 2026 · Sri Lanka Customs

MODULE 5: SRI LANKA IMPORT DUTY & 18% VAT BREAKDOWN

Base Customs Duty

coverage in progress

MFN Rate [Sri Lanka Customs]

Import VAT / Tax Rate

18% VAT

Local Tax Rate

De Minimis Threshold

LKR threshold

Customs Exemption Limit

Notice: Sri Lanka customs entry, tariff classification, MFN duty rates, and 18% VAT are governed by Sri Lanka Customs. Always verify declarable lines with Sri Lanka Customs prior to import.

TRACK THIS HS CODE

Get Real-Time Tariff & Trade Remedy Change Alerts for HS 7318.16

Receive an automated email notification whenever USITC or CBP publishes duty rate adjustments or customs notices for 7318.16.

MODULE 6: Mandatory Customs Entry Document Matrix

Rule-Derived Customs Entry Package Checklist

UNIVERSAL DOCUMENT

Commercial Invoice

Itemized description, currency, Incoterms, seller/buyer details, and country of origin.

UNIVERSAL DOCUMENT

Packing List & Bill of Lading

Gross/net weight, container/seal numbers, piece count, and transport B/L or Air Waybill.

PREFERENTIAL RULE

Certificate of Origin (If Claiming FTA)

Required only when claiming zero-duty preference under USMCA, KORUS, or GSP.

MODULE 7: Regulatory Compliance & Partner Government Agency (PGA) Flags

Standard Entry This commodity does not carry mandatory PGA pre-clearance flags under the ACE message set.

MODULE 8: SRI LANKA Trade Remedies & Safeguards

Sri Lanka Customs Anti-Dumping / Trade Defence

Standard Sri Lanka Customs Tariff 2026

Steel & Commodity Safeguards

Safeguard Measures May Apply

Regulatory Compliance Status

Standard Statutory Clearance

MODULE 9: Free Trade Agreements (FTA) & Rules of Origin (RoO)

Browse all preferential trade calculators & compliance tools in our Customs Tools Hub ↗.

Agreement Code	Trade Agreement / Program	Preferential Rate	Rules of Origin (RoO) Requirement
MFN	WCO Most-Favoured-Nation (MFN) Status	Standard MFN Rate	Applies to all WTO member states for Threaded articles, Nuts.
FTA	Sri Lanka Preferential & Regional Trade Agreements	Free / Concessional	Subject to official Certificate of Origin & Rules of Origin (RoO) requirements.

MODULE 10: Logistics, Freight & Transport Specifications

Standard 20ft Container

~28 CBM / 28,000 kg Payload

Standard 40ft High-Cube

~68 CBM / 28,600 kg Payload

Stowage Factor & Handling

Standard commercial packaging for Threaded articles, Nuts

MODULE 11: Sri Lanka Customs Advance Ruling System

Legally binding advance tariff rulings issued by Sri Lanka Customs for HS 7318.16.

Query official Customs portal:

Search Official Customs Portal for 7318.16 →

Sri Lanka Declarable Tariff Schedule (7318.16)

National line-level (8/10-digit) detail for Sri Lanka (Customs): coverage in progress.

Universal 6-digit WCO backbone applied rate: coverage in progress. Confirm the full national commodity code at the official source (Sri Lanka Customs).

MODULE 12: Candidate Subheadings & Related Codes

Related HS Code	Heading Category	Action
7318.11	Subheading under Heading 7318	HS 7318.11 Sri Lanka Duty & Entry Rules →
7318.12	Subheading under Heading 7318	HS 7318.12 Sri Lanka Duty & Entry Rules →
7318.13	Subheading under Heading 7318	HS 7318.13 Sri Lanka Duty & Entry Rules →
7318.14	Subheading under Heading 7318	HS 7318.14 Sri Lanka Duty & Entry Rules →

Official Primary Sources & Authority References

Sri Lanka (Sri Lanka Customs Tariff 2026) ↗

Official Sri Lanka tariff schedule and MFN duty rates — administered by Sri Lanka Customs.

Sri Lanka Customs — Advance Tariff Ruling ↗

Binding tariff classification precedents administered by Sri Lanka Customs Advance Ruling System.

MODULE 14: Frequently Asked Questions (FAQ) & Operational Guide

What is the 6-digit WCO tariff classification and United States (USITC HTS) general duty for Threaded articles, Nuts?

Under WCO Harmonized System 2022 and United States (USITC HTS), Threaded articles, Nuts is classified under HS 7318.16 (Heading 7318, Chapter 73). The representative LK MFN general duty rate is coverage in progress.

How is HS 7318.16 distinguished within Heading 7318 (Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel)?

Heading 7318 covers Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel. Subheading 7318.16 specifically isolates Threaded articles, Nuts. Importers must verify whether physical characteristics, processing state, or composition require alternative subheadings under Heading 7318.

What are the primary candidate subheadings related to HS 7318.16?

Related subheadings under Heading 7318 include 7318.11, 7318.12, 7318.13, 7318.14, 7318.15, 7318.19, 7318.21, 7318.22. Classification depends on processing stage, decaffeination, purity, or material form.

What mandatory commercial entry documents are required to import Threaded articles, Nuts?

Commercial Invoice (detailing Incoterms, currency, and origin), Packing List, Bill of Lading (or Air Waybill), CBP Form 7501 Entry Summary, and a continuous customs bond are required for formal entries.

Can goods under HS 7318.16 enter duty-free under USMCA or Free Trade Agreements?

Yes. Eligible goods originating in Mexico, Canada, South Korea, or Australia enter duty-free under preference SPI codes (P, KR, AU) provided they satisfy Regional Value Content (RVC) or tariff-shift rules with a valid Certificate of Origin.

What is the US formal entry threshold for shipments of Threaded articles, Nuts?

Commercial shipments of Threaded articles, Nuts with a customs value exceeding $2,500 USD require formal customs entry (CBP Form 7501) and a continuous entry bond. Informal entry applies to lower values.

How can an importer obtain a binding CBP classification ruling for HS 7318.16?

Importers may submit an e-Ruling request under 19 CFR Part 177 to CBP National Commodity Specialist Division (NCSD) to obtain a legally binding tariff classification ruling prior to importation.

What import VAT or sales tax applies to HS 7318.16 in Sri Lanka?

Commercial imports of Threaded articles, Nuts under HS 7318.16 into Sri Lanka are subject to 18% VAT, assessed on the entered customs value plus applicable duties.

What is the customs duty de minimis threshold in Sri Lanka?

The customs de minimis threshold for import shipments into Sri Lanka is LKR threshold. Consignments under this value may qualify for duty-free or simplified entry under local regulations.

Which authority regulates customs entry and tariff classification in Sri Lanka?

Customs declarations, import duty assessments, and Sri Lanka Customs Advance Ruling System for HS 7318.16 are administered by Sri Lanka Customs.

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