</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

1/4-20 Stainless Steel Carriage Bolt with Nut from Mexico

Stainless steel carriage bolt with distinctive round head and square neck, 1/4-inch (6.35 mm) diameter threads, including nut in shipment. Fits HTS 7318.15.20.51 for stainless steel round-head bolts with 6mm+ shanks shipped together with nuts. Ideal for woodworking and decking where flush fitting is needed.

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

Provide engineering drawings showing round head and square neck to distinguish from hex bolts and support classification

Confirm imperial/metric equivalence (1/4" = 6.35mm >6mm) with caliper measurements to prevent diameter disputes

Include proof of same-shipment entry for bolt/nut sets; mismatched shipments risk duty reassessment