| Tariff Classification |
| section 15 | Base metals and articles of base metal |
| chapter 74 | Copper and articles thereof |
| 74.15 | Nails, tacks, drawing pins, staples (other than those of heading 83.05) and similar articles, of copper or of iron or steel with heads of copper; screws, bolts, nuts, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of copper: |
| －Other threaded articles: |
| 7415.33 | －－Screws; bolts and nuts |
|