Heat-Treated 0.3% Carbon Lock Wire
Corrosion-resistant round wire at 0.3% carbon, heat treated for aerospace lock-wiring applications securing bolts and safety-critical fasteners. Offers precise tensile properties. Classified in HTS 7217.10.80.10 for nonalloy, mid-carbon, heat-treated, unplated round wire.
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
Stainless lock wire moves to Chapter 72 stainless headings.
If under 0.25% carbon
Lower carbon lock wire uses different carbon subheading.
Not sure which classification is right?
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Import Tips & Compliance
• Aerospace buyers require traceable heat lot numbers; include in commercial invoice
• Avoid misclassification as stainless by confirming nonalloy status via analysis
• Declare exact gauge; variances can trigger wire vs. rod reclassification
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