1/4-20 UNC Stainless Steel Flange Nut from Mexico
A wide-base flange nut in 316 stainless steel with 1/4-20 UNC threading, ideal for automotive and plumbing fixtures requiring extra bearing surface. Classified under HTS 7318.16.00.60 for stainless steel threaded nuts.
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
• Label flange nuts separately from bolts in shipments to avoid set classification pitfalls
• Include ANSI B18.2.2 certification for UNC threading to support tariff verification
• Watch for anti-dumping duties on certain stainless origins like China or Taiwan