| 7318.21.00 | 30 | Helical spring lock washers | kg | | | |
| 7320.20 | | Helical springs: | | | | |
| 7320.20.50 | 10 | Helical springs, of wire having a cross-sectional dimension of less than 5.1 mm: | | | | |
| 7320.20.50 | 45 | Helical springs, of wire having a cross-sectional dimension of 5.1 mm or more but less than 12.7 mm | kg | | | |
