Section 15 BASE METALS AND ARTICLES OF BASE METAL 74 Copper and articles thereof 74 15 Nails, tacks, drawing pins, staples (other than those of heading 83.05) and simi 74 15 10 74 15 10 00 Commodity Code Description 74 15 10 00 00 - Nails and tacks, drawing pins, staples and similar articles 74 15 21 00 00 -- Washers (including spring washers) 74 15 29 00 00 -- Other 74 15 33 00 00 -- Screws; bolts and nuts 74 15 39 00 00 -- Other