7318.15.60.10 - Of stainless steel

This HTS category, 7318.15.60.10, specifically covers socket screws made of stainless steel that have shanks or threads with a diameter less than 6 mm. Socket screws are characterized by their internal socket drive (hexagonal or similar) designed to be driven by an Allen wrench or hex key. This subdivision focuses on those made from stainless steel, differentiating them from other materials that might fall under broader categories.

This classification is distinct from its sibling category, 7318.15.60.40 ("Other"), which would encompass socket screws with a diameter of 6 mm or greater or those made from materials other than stainless steel. The emphasis here is on both the specific type of screw (socket drive) and its material composition (stainless steel), along with a precise dimensional limitation.

As this is a leaf node in the HTS, there are no further subcategories within 7318.15.60.10. Therefore, classification within this code is definitive for stainless steel socket screws meeting the specified diameter criteria. Practical classification relies on verifying the drive type, material composition, and shank or thread diameter of the fastener in question.