Torsional Lock Washer 3/8 Inch from Mexico
Steel washer with twisted tabs providing torsional resistance beyond axial spring force. Advanced non-threaded lock washer under HTS 7318.21.00. For vibration-intensive rail and mining equipment.
Duty Rate — Mexico → United States
55.8%
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
• Torsion test data differentiates from standard split washers
• Heavy section requires accurate weight declarations
• Rail certification may trigger additional documentation