# HTS 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: https://geopax.app/tariffs/catalog/73/7318 Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=7318). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator ## 7318: Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: | Code | Description | General | Special | Column 2 | Units | | --- | --- | --- | --- | --- | --- | | 7318 | Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: | | | | | | | Threaded articles: | | | | | | 7318.11.00.00 | Coach screws | 12.5% | Free (A+,AU,B,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) | 25% | kg | | 7318.12.00.00 | Other wood screws | 12.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg | | 7318.13.00 | Screw hooks and screw rings | 5.7% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.13.00.30 | Having shanks or threads with a diameter of less than 6 mm | 5.7% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.13.00.60 | Having shanks or threads with a diameter of 6 mm or more | 5.7% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.14 | Self-tapping screws: | | | | | | 7318.14.10 | Having shanks or threads with a diameter of less than 6 mm | 6.2% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 3.1% (JP) | 45% | | | 7318.14.10.30 | Of stainless steel | 6.2% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 3.1% (JP) | 45% | kg | | 7318.14.10.60 | Other | 6.2% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 3.1% (JP) | 45% | kg | | 7318.14.50 | Having shanks or threads with a diameter of 6 mm or more | 8.6% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 4.3% (JP) | 45% | | | 7318.14.50.20 | Of stainless steel | 8.6% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 4.3% (JP) | 45% | kg | | 7318.14.50.80 | Other | 8.6% | Free (A+,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 4.3% (JP) | 45% | kg | | 7318.15 | Other screws and bolts, whether or not with their nuts or washers: | | | | | | 7318.15.20 | Bolts and bolts and their nuts or washers entered or exported in the same shipment | Free | | 3.5% | | | 7318.15.20.10 | Having shanks or threads with a diameter of less than 6 mm | Free | | 3.5% | kg | | | Having shanks or threads with a diameter of 6 mm or more: | Free | | 3.5% | | | 7318.15.20.20 | Track bolts | Free | | 3.5% | kg | | 7318.15.20.30 | Structural bolts | Free | | 3.5% | kg | | | Bent bolts: | Free | | 3.5% | | | 7318.15.20.41 | Right-angle anchor bolts | Free | | 3.5% | kg | | 7318.15.20.46 | Other | Free | | 3.5% | kg | | | Other: | Free | | 3.5% | | | | With round heads: | Free | | 3.5% | | | 7318.15.20.51 | Of stainless steel | Free | | 3.5% | kg | | 7318.15.20.55 | Other | Free | | 3.5% | kg | | | With hexagonal heads: | Free | | 3.5% | | | 7318.15.20.61 | Of stainless steel | Free | | 3.5% | kg | | 7318.15.20.65 | Other | Free | | 3.5% | kg | | | Other: | Free | | 3.5% | | | 7318.15.20.91 | Of stainless steel | Free | | 3.5% | kg | | 7318.15.20.95 | Other | Free | | 3.5% | kg | | 7318.15.40.00 | Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws) | Free | | 2.2¢/kg | kg | | 7318.15.50 | Studs | Free | | 45% | | | 7318.15.50.30 | Of stainless steel | Free | | 45% | kg | | | Other: | Free | | 45% | | | | Continuously threaded rod: | Free | | 45% | | | 7318.15.50.51 | Of alloy steel | Free | | 45% | kg | | 7318.15.50.56 | Other | Free | | 45% | kg | | 7318.15.50.90 | Other | Free | | 45% | kg | | | Other: | | | | | | 7318.15.60 | Having shanks or threads with a diameter of less than 6 mm | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | | Socket screws: | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.60.10 | Of stainless steel | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.60.40 | Other | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | | Other: | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.60.70 | Of stainless steel | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.60.80 | Other | 6.2% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.80 | Having shanks or threads with a diameter of 6 mm or more | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.80.20 | Set screws | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | | Other: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | | Socket screws: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.80.30 | Of stainless steel | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.80.45 | Other | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | | Other: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | | With hexagonal heads: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.80.55 | Of stainless steel | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | | Other: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.80.66 | Cap screws | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.80.69 | Other | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | | Other: | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | | | 7318.15.80.82 | Of stainless steel | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.15.80.85 | Other | 8.5% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.16.00 | Nuts | Free | | 0.5% | | | | Lugnuts: | Free | | 0.5% | | | 7318.16.00.15 | Non-locking chrome-plated | Free | | 0.5% | kg | | 7318.16.00.30 | Locking | Free | | 0.5% | kg | | 7318.16.00.45 | Other | Free | | 0.5% | kg | | | Other: | Free | | 0.5% | | | 7318.16.00.60 | Of stainless steel | Free | | 0.5% | kg | | 7318.16.00.85 | Other | Free | | 0.5% | kg | | 7318.19.00.00 | Other | 5.7% | Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.85% (JP) | 45% | kg | | | Non-threaded articles: | | | | | | 7318.21.00 | Spring washers and other lock washers | 5.8% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.9% (JP) | 35% | | | 7318.21.00.30 | Helical spring lock washers | 5.8% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.9% (JP) | 35% | kg | | 7318.21.00.90 | Other | 5.8% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 2.9% (JP) | 35% | kg | | 7318.22.00.00 | Other washers | Free | | 1.3¢/kg | kg | | 7318.23.00.00 | Rivets | Free | | 2.2¢/kg | kg | | 7318.24.00.00 | Cotters and cotter pins | 3.8% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg | | 7318.29.00.00 | Other | 2.8% | Free (A,AU,B,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) | 45% | kg |