Spring Washers
Split steel spring washers that provide tension to prevent loosening of fasteners. Classified under HTS 7318.29.00.00 as non-threaded 'other' articles of iron or steel, explicitly including spring washers per heading notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If externally threaded
Threaded washers are classified separately under 7318.21.
If internally threaded (nuts)
Washers with internal threads become nuts under 7318.22.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Label as 'spring washers' clearly to distinguish from plain washers under other subheadings
• Provide engineering drawings showing split design for customs verification
• Ensure compliance with ASTM standards if marketed for construction use
Related Products under HTS 7318.29.00.00
Steel Rivets
Cylindrical steel rivets used for permanent fastening in metal fabrication and construction. These non-threaded articles fall under HTS 7318.29.00.00 as they are classified as 'other' non-threaded articles of iron or steel, distinct from screws, bolts, or nuts.
Cotter Pins
Steel cotter pins with a split end for securing pins in mechanical assemblies like machinery. These non-threaded pins qualify as 'other' articles under HTS 7318.29.00.00, matching the heading's inclusion of cotter pins.
Steel Drive Pins
Hardened steel drive pins hammered into concrete or masonry for anchoring. As non-threaded fastening articles, they are covered by HTS 7318.29.00.00 'other' category for iron or steel similar articles.
Quick Release Pins
Steel quick release pins with ball detent mechanism for easy insertion/removal in equipment. These non-threaded pins fall under HTS 7318.29.00.00 as 'similar articles' to rivets and cotters.
Steel Blind Rivets
Pop-style steel blind rivets installed from one side for sheet metal joining. Classified in HTS 7318.29.00.00 as non-threaded 'other' rivets of iron or steel.
Dowel Pins
Precision-ground steel dowel pins for accurate alignment in machinery. Non-threaded and qualifying as 'similar articles' under HTS 7318.29.00.00.