Analysis
HTS 7318.23.00 covers non-threaded articles: rivets under heading 7318 (screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers…).
Within this group the rate runs from duty-free to 12.5%. Compared with 7318.12.00 (threaded articles: other wood screws), which pays 12.5%, a misclassification either way moves the duty by 12.5 percentage points.
The normal trade relations rate here is zero, shared by about 77% of the 250 tariff lines in chapter 73, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
Census statistics map these goods to NAICS 332722 (Bolt, Nut, Screw, Rivet, and Washer Manufacturing), an industry of 721 US establishments employing 37,521 people. That concordance is how imports of this line are compared with US output.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 7318.11.00 | Threaded articles: coach screws | 12.5% |
| 7318.12.00 | Threaded articles: other wood screws | 12.5% |
| 7318.13.00 | Screw hooks and screw rings | 5.7% |
| 7318.14.10 | Having shanks or threads with a diameter of less than 6 mm | 6.2% |
| 7318.14.50 | Having shanks or threads with a diameter of 6 mm or more | 8.6% |
| 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% |
| 7318.16.00 | Threaded articles: nuts | Free |
| 7318.19.00 | Threaded articles: other | 5.7% |
| 7318.21.00 | Spring washers and other lock washers | 5.8% |
| 7318.22.00 | Non-threaded articles: other washers | Free |
| 7318.24.00 | Cotters and cotter pins | 3.8% |
| 7318.29.00 | Non-threaded articles: other | 2.8% |