Analysis
Subheading 7318.15 covers other screws and bolts, whether or not with their nuts or washers, within heading 7318. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 5 US tariff lines below it are national.
The spread of 8.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 8.5%, applies to 7318.15.80 (having shanks or threads with a diameter of 6 mm…).
3 of its 5 lines with a percentage rate are duty-free at the general rate (60%) and 2 are dutiable, from duty-free up to 8.5%. The median line pays duty-free.
The US splits it as follows: 7318.15.20 for bolts and bolts and their nuts or washers entered or exported in the… (duty-free), 7318.15.40 for machine screws 9.5 mm or more in length and 3.2 mm or more in… (duty-free), 7318.15.50 for other screws and bolts, whether or not with their nuts or washers… (duty-free), 7318.15.60 for having shanks or threads with a diameter of less than 6 mm (6.2%) and 7318.15.80 for having shanks or threads with a diameter of 6 mm or more (8.5%).
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 7318.15.20 | Bolts and bolts and their nuts or washers entered or exported in the same shipment | Free |
| 7318.15.40 | Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws) | Free |
| 7318.15.50 | Other screws and bolts, whether or not with their nuts or washers: studs | Free |
| 7318.15.60 | Having shanks or threads with a diameter of less than 6 mm | 6.2% |
| 7318.15.80 | Having shanks or threads with a diameter of 6 mm or more | 8.5% |