A490 Alloy Structural Bolts from United States
A490 bolts are quenched and tempered alloy steel structural bolts for high-load applications like bridges and towers, featuring diameters from 1/2 inch (12.7 mm) and above, often shipped with heavy hex nuts. Classified under tariff item 7318.15.00 for other screws and bolts of iron or steel.
Duty Rate — United States → Canada
50%
Rate breakdown
26SUR5050%United States Surtax Order (2026) — 50% on US products
Import Tips
• Ensure the diameter is 6 mm or more and the set includes heavy hex nuts
• Provide ASTM A490 certification for customs
• Declare the structural application for accurate classification