2.8 mm Lock Wire High Carbon
High-carbon 0.65% C round lock wire 2.8 mm diameter, uncoated, for safety wiring in aviation and aerospace. Prevents loosening of fasteners under vibration. HTS 7217.10.80.90: nonalloy round wire ≥1.5 mm, ≥0.6% carbon.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stainless steel version
Common stainless lock wire (A286, 304) classifies under stainless Chapter 72 heading 7223.
If pre-cut and looped safety wire
Fabricated safety wire products classify as wire articles in Chapter 73.
If lower carbon content <0.6%
Standard safety wire often lower carbon, in separate nonalloy wire subheading.
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Import Tips & Compliance
• Aerospace Material Specification (AMS) 5688 or equivalent certification mandatory for airworthiness
• Stainless versions common; confirm nonalloy chemistry to avoid 7223 classification
• Galvanized versions exist; uncoated status must be verified by coating weight tests
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