Coupler Knuckle from Mexico
The pivoting steel component that actually engages with adjacent couplers to form the connection. Falls under HTS 8607.30.50.00 as a critical coupling device part.
Duty Rate — Mexico → United States
27.6%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) 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
• AAR Grade E steel, Rockwell C 38-44 hardness range,Critical wear surfaces must meet contour tolerances (±0.015 inches),Include pull test certification (500,000 lbs minimum)