Heat-Treated 0.3% Carbon Lock Wire from China

Corrosion-resistant round wire at 0.3% carbon, heat treated for aerospace lock-wiring applications securing bolts and safety-critical fasteners. Offers precise tensile properties. Classified in HTS 7217.10.80.10 for nonalloy, mid-carbon, heat-treated, unplated round wire.

Duty Rate — China → United States

35%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter

Import Tips

Aerospace buyers require traceable heat lot numbers; include in commercial invoice

Avoid misclassification as stainless by confirming nonalloy status via analysis

Declare exact gauge; variances can trigger wire vs. rod reclassification