HS Code for Lock washers
Lock washers are classified under HS code 7318.21. This classification falls within Chapter 73, which covers articles of iron or steel. Heading 7318 is specifically for screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles. Subheading 7318.21 is a specific breakout for spring washers and other lock washers that are non-threaded. The primary characteristic for this classification is the washer's design to prevent a fastener from loosening under vibration or torque. This is achieved through spring tension or serrated surfaces. The classification is straightforward under GRI 1, as the product name and function align perfectly with the subheading text. It is important to note that this code only applies to washers made of iron or steel; washers made of copper or aluminum would be classified in their respective chapters (Chapter 74 or 76).
Products Included
- Split-ring lock washers (helical)
- Internal and external tooth star washers
- Serrated lock washers
- Wave washers designed for locking
- Belleville washers (when used as spring washers)
- Nord-Lock style wedge-locking washers
Common Misclassification
The most frequent misclassification for lock washers is HS code 7318.22, which covers 'other' non-threaded washers that do not have a spring or locking function (standard flat washers). Another error occurs when lock washers are imported as part of a kit; if they are packaged with bolts and nuts, they might be incorrectly classified under 7318.15. However, when shipped as individual components, the distinction between a spring/lock washer (7318.21) and a plain washer (7318.22) is critical for accurate duty application.
FAQ
What is the HS code for lock washers?
The HS code for iron or steel lock washers and spring washers is 7318.21.
Are stainless steel lock washers classified differently?
No, stainless steel is a type of steel, so stainless steel lock washers are still classified under HS code 7318.21.
Industry
Frequently Asked Questions
What is the HS code for Lock washers?
The HS code for Lock washers is 731821 (Iron or steel; non-threaded spring washers and other lock washers).
How do I classify Lock washers for customs?
Lock washers is classified under HS code 731821 — Iron or steel; non-threaded spring washers and other lock washers. This is a 6-digit subheading level code.
Is the HS code for Lock washers the same in all countries?
The base HS code 731821 for Lock washers is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.