M8 Zinc-Plated Helical Spring Lock Washer from Canada
Zinc-plated M8 helical spring lock washer of carbon steel for corrosion resistance in construction and machinery. The helical coil deforms to lock fasteners under load. HTS 7318.21.0030 covers these non-threaded spring lock washers.
Duty Rate — Canada → United States
55.8%
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
• Declare zinc plating thickness per ISO 4042 to comply with surface treatment rules
• Use clear invoicing with DIN 127B specs to distinguish from plain spring washers