About HS Code 731816
This code covers a vast array of threaded nuts made from iron or steel, crucial components in almost every assembly requiring a secure fastening. These nuts are designed to mate with threaded bolts or screws, providing clamping force and preventing loosening in a multitude of applications, from heavy machinery to consumer electronics. International trade in these items is driven by global manufacturing supply chains, with demand stemming from automotive, aerospace, construction, and general engineering sectors. Importers typically include assembly plants, hardware wholesalers, and MRO (Maintenance, Repair, and Operations) suppliers who require a steady supply for production and maintenance. Exporters are specialized fastener manufacturers, often located in regions with strong steel production capabilities and advanced manufacturing processes. Key considerations for trade involve material strength, thread pitch, plating (e.g., zinc, hot-dip galvanized for corrosion protection), and adherence to international standards like ISO, DIN, and ANSI, which ensure compatibility and performance across different markets. The sheer volume and variety make this a significant segment of the industrial hardware market.
Products Under This Code
Hex nuts, lock nuts, wing nuts, cap nuts, flange nuts, coupling nuts, square nuts, castle nuts
Real World Examples
Nord-Lock washers (used with nuts), Fastenal hex nuts, Würth self-locking nuts, Böllhoff rivet nuts
Common Misclassification
Often confused with 731815 (screws and bolts) or 731819 (other threaded articles), but 731816 is specifically for threaded nuts, not the bolts or screws they attach to.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Products Classified Under 7318.16
Industry
This code belongs to the Automotive & Vehicles industry.
Trade Overview
China, Germany, and the USA are prominent in the global trade of threaded nuts, both as producers and consumers.
Frequently Asked Questions
What is HS code 731816?
HS code 731816 covers: Iron or steel; threaded nuts. This code covers a vast array of threaded nuts made from iron or steel, crucial components in almost every assembly requiring a secure fastening. These nuts are designed to mate with threaded bolts or screws, providing clamping force and preventing loosening in a multitude of applications, from heavy machinery to consumer electronics. International trade in these items is driven by global manufacturing supply chains, with demand stemming from automotive, aerospace, construction, and general engineering sectors. Importers typically include assembly plants, hardware wholesalers, and MRO (Maintenance, Repair, and Operations) suppliers who require a steady supply for production and maintenance. Exporters are specialized fastener manufacturers, often located in regions with strong steel production capabilities and advanced manufacturing processes. Key considerations for trade involve material strength, thread pitch, plating (e.g., zinc, hot-dip galvanized for corrosion protection), and adherence to international standards like ISO, DIN, and ANSI, which ensure compatibility and performance across different markets. The sheer volume and variety make this a significant segment of the industrial hardware market.
What products fall under HS code 731816?
Hex nuts, lock nuts, wing nuts, cap nuts, flange nuts, coupling nuts, square nuts, castle nuts
What are common misclassifications for HS code 731816?
Often confused with 731815 (screws and bolts) or 731819 (other threaded articles), but 731816 is specifically for threaded nuts, not the bolts or screws they attach to.
How is HS code 731816 structured?
HS code 731816 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (18) identify the heading, and digits 5-6 (16) specify the subheading. This code is standardized globally by the World Customs Organization.