Explanatory notes
… Chapter 83 Miscellaneous articles of base metal Notes. 1.‑ … 73.18 or 73.20, or similar articles of other base metal (Chapters 74 to 76 and 78 to 81) are not to be taken as parts … not cover springs (even if specialised for locks, etc.), chains, cables, nuts, bolts, screws or nails; these goods …Legal note
… Notes. 1.‑ For the purposes of this Chapter, parts of base metal are to be classified with their … 73.18 or 73.20, or similar articles of other base metal (Chapters 74 to 76 and 78 to 81) are not to be taken as parts …