7315.81.00.00 - Stud link

This classification, 7315.81.00.00, specifically covers "stud link" chain and parts thereof, manufactured from iron or steel. Stud link chain is characterized by the presence of studs or crossbars connecting the links, which significantly increases its strength and resistance to deformation. These studs are typically welded or cast as an integral part of the link. Such chains are commonly employed in demanding applications where durability and load-bearing capacity are paramount, such as in anchor chains for vessels, towing operations, and heavy industrial lifting.

It is crucial to distinguish this category from its siblings. While 7315.82 covers "other, welded link" chain, it does not necessitate the inclusion of studs. Similarly, 7315.89 encompasses all other types of chain that do not fit the criteria for stud link or other specific welded link categories. Therefore, the defining feature of 7315.81.00.00 is the presence of the characteristic stud, a structural element absent in other "other chain" classifications.

As this is a leaf node within the HTS, there are no further subcategories under 7315.81.00.00. Classification at this level is determined by the presence of the stud link feature, distinguishing it from simpler welded or other types of chain within heading 7315. The material composition (iron or steel) and the nature of the links as forming a chain are assumed from the parent categories.