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8mm Carriage Bolt with Square Neck and Nut from Mexico

Durable steel carriage bolt with 8mm diameter threads, round domed head, and integral square neck to prevent spinning, including nut and flat washer. Classified in HTS 7318.15.20.55 for round head bolts ≥6mm shipped with fasteners. Ideal for woodworking and outdoor construction where embedment 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

Document head as 'round' (domed) despite square neck; customs measures outer profile

Ensure all components (bolt, nut, washer) in same container per invoice to qualify for mixed shipment

Avoid classifying as coach screws (7318.19); confirm no wood-screw threads