HS Code for Carriage Bolts (US)
PRIMARY CLASSIFICATION RESULT (US)
The primary 6-digit Harmonized System (HS) code for carriage bolts is 7318.15 (Threaded articles, Other screws and bolts, whether or not with their nuts or washers). Under the 2026 US HTS, representative general duties are Free [Official Source].
Classification guidance note.
Candidate Subheadings & Disambiguation Matrix
| HS Subheading | WCO Subheading Description | Disambiguation Rule / Notes | Action |
|---|---|---|---|
| 7318.15 | Threaded articles, Other screws and bolts, whether or not with their nuts or washers | Threaded articles, Other screws and bolts, whether or not with their nuts or washers | View 7318.15 → |
Official Primary Sources & Authority References
USITC HTS Database ↗
USITC official Harmonized Tariff Schedule for Carriage Bolts.
CBP CROSS Rulings ↗
CBP e-Rulings database for Carriage Bolts classification precedents.
WCO Nomenclature ↗
World Customs Organization international 6-digit Harmonized System standard.
Carriage Bolts Frequently Asked Questions (FAQ)
What is the official 6-digit HS code for Carriage Bolts?
The primary 6-digit Harmonized System (HS) code for Carriage Bolts is HS 7318.15 (Threaded articles, Other screws and bolts, whether or not with their nuts or washers).
What is the US general import duty for Carriage Bolts?
Under the 2026 US HTS, representative MFN general duty rates for Carriage Bolts under HS 7318.15 are Free.
Are there alternative candidate subheadings for Carriage Bolts?
Yes. Depending on state (green vs. roasted, decaffeinated vs. non-decaffeinated, raw vs. processed), alternative subheadings include 731815.
What mandatory import documents are required for Carriage Bolts?
Commercial Invoice, Packing List, Bill of Lading, and Partner Government Agency permits where applicable.
Does de minimis duty-free exemption apply to Carriage Bolts?
Eligible shipments enter duty-free under statutory destination thresholds.
How are merchandise processing and customs fees calculated for Carriage Bolts?
Import fees are assessed on entered customs value under destination regulations.