Silico-Manganese Steel Lock Wire from Mexico
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 — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Aerospace specs (MS24665) require exact alloy certification; declare temper condition (annealed vs half-hard); color coding may indicate further treatment