M6 Copper Flat Washer
A flat, circular washer made from pure copper, designed for M6 bolts to distribute load and prevent surface damage. It falls under HTS 7415.21.00.00 as an unthreaded copper washer used in general fastening applications. Complies with Chapter 74 for copper articles excluding threaded fasteners.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If externally or internally threaded
Threaded copper washers shift to subheading 7415.31 for screwed articles.
If made of iron or steel with copper plating only
Base metal composition prevails over copper coating, moving to Chapter 73.
If imported in sets with copper screws or bolts
Articles presented as fastener sets classify under 7419.99 as other copper articles.
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Import Tips & Compliance
• Verify copper purity via material certification to avoid reclassification under base metal chapters
• Include detailed technical specs and usage in entry docs to confirm unthreaded washer status
• Watch for minimum thickness requirements; thin washers may face antidumping scrutiny
Related Products under HTS 7415.21.00.00
Copper Spring Lock Washer
A split-ring spring washer made of copper alloy that provides locking action by exerting spring tension. Classified under HTS 7415.21.00.00 as a spring washer of copper, unthreaded for vibration-resistant assemblies. Meets definitions for copper articles in Chapter 74.
1/4 Inch Copper Beveled Washer
Beveled copper washer for 1/4-inch bolts, providing angular load distribution in woodworking or decking. HTS 7415.21.00.00 covers this unthreaded copper washer as a similar article. Pure copper construction aligns with Chapter 74 exclusions.
M8 Copper Split Lock Washer
Helically split copper lock washer for M8 metric fasteners, preventing loosening under vibration. Fits HTS 7415.21.00.00 for unthreaded copper spring washers. Excludes threaded articles per heading structure.
Copper Fender Washer 3/8 Inch
Large outer diameter copper fender washer for 3/8-inch bolts, ideal for roofing and soft material fastening. HTS 7415.21.00.00 includes such unthreaded copper washers. Distinguished from threaded by heading hierarchy.
Internal Tooth Copper Washer
Copper washer with internal teeth that bite into surfaces for lockwashers in electrical panels. Unthreaded design places it in HTS 7415.21.00.00 for copper spring washers. Chapter notes confirm copper base.
External Star Copper Lock Washer
Star-pattern external tooth lock washer of copper for high-vibration automotive use. Classifies as spring washer under HTS 7415.21.00.00, unthreaded copper article. Excludes sets per GRI 3 rules.