7318.14.50.20 - Of stainless steel

This HTS category specifically covers self-tapping screws made of iron or steel that have a shank or thread diameter measuring 6 millimeters or more. These screws are designed to create their own threads when inserted into a material, often pre-drilled or pilot holes. The defining characteristic for inclusion here is the substantial diameter of 6 mm or greater, indicating a larger and more robust type of self-tapping screw intended for heavier-duty applications.

Distinction from sibling categories is crucial for accurate classification. The sibling category, 7318.14.50.80, encompasses "Other" self-tapping screws. Therefore, any self-tapping screw meeting the criteria of having a shank or thread diameter of 6 mm or more falls into this specific subheading. If a self-tapping screw does not meet this diameter requirement, it would likely be classified under the "Other" sibling.

As this is a leaf node in the HTS classification, there are no further subcategories to introduce. Classification under this subheading is definitive for self-tapping screws of iron or steel with a diameter of 6 mm or more. Examples of common applications for screws in this category include structural assembly in construction, automotive manufacturing, and heavy machinery, where their size and self-threading capability are essential.