7415.33.10.00 - Muntz or yellow metal bolts

This HTS category, 7415.33.10.00, specifically classifies Muntz or yellow metal bolts. Muntz metal is a type of brass characterized by its high zinc content (approximately 60% copper and 40% zinc), giving it a distinct yellowish hue and excellent corrosion resistance, particularly in marine environments. These bolts are threaded fasteners designed to join materials, typically secured with a nut. Their classification is rooted in their material composition (copper alloy) and their form as bolts.

This specific heading distinguishes itself from its sibling, 7415.33.05.00, which covers screws intended for wood applications. While both are threaded fasteners made of copper alloys, the intended use and design of screws for wood (often featuring coarser threads and pointed tips) differ from the more robust construction of bolts, which are generally used with nuts in more structural applications. Furthermore, it is distinct from other screws and bolts and nuts covered under 7415.33.80, as it specifically calls out bolts made of Muntz or yellow metal.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification into 7415.33.10.00 is determined by the material (Muntz or yellow metal) and the form factor (bolt). The primary considerations for classification are the alloy composition, confirming it is indeed Muntz metal or a similar yellow brass, and that the article is a bolt as opposed to a screw or nut.