1/4-20 UNC Grade 5 Bolt Nut Washer Kit from Mexico
Imperial-sized Grade 5 zinc-plated steel bolt with nut and washer, packaged and shipped as a matched set for structural applications. Classified under HTS 7318.15.20 due to being bolts with their nuts and washers in the same shipment.
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 packages clearly as 'bolt with nut and washer sets' to match HTS description and prevent separate classification
• Provide thread pitch and strength grade (e.g
• Grade 5) on invoices for customs valuation
• Ensure compliance with ASTM standards if marketed for US construction use