High-Carbon Steel Wave Spring Lock Washer 5/16 Inch from Mexico
Wave-shaped spring washer of high-carbon steel for friction locking in low-load applications. Classified as HTS 7318.21.0090 'other' lock washer due to non-threaded spring design. Common in electronics and automotive trim.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify carbon content (>0.6%) to differentiate from mild steel
• Include load/deflection curves in technical docs
• Separate from Belleville types in manifests to avoid grouping errors