Silico-Manganese Steel Lock Wire from China
Corrosion-resistant silico-manganese steel wire used for safety wiring in aviation and machinery to prevent fastener loosening. HTS 7229.20.00 applies to this high-strength, non-magnetic alloy wire meeting aerospace specifications. Typically 0.8-1.6mm diameter in soft temper.
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 specs (MS24665) require exact alloy certification; declare temper condition (annealed vs half-hard); color coding may indicate further treatment