1.8 mm Patenting Heat-Treated Lock Wire
High-carbon (0.65%) round lock wire, patenting heat-treated for aerospace applications, 1.8 mm diameter, not coated. Fits HTS 7217.10.80.45 as nonalloy, high-carbon, heat-treated round wire ≥1.5 mm. Provides secure fastening in safety-critical assemblies.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If further drawn and looped
Pre-formed safety wire clips or pins are classified as fasteners under 7318.
If tool steel grade
High-carbon wire meeting tool steel definitions (per U.S. note e) uses alloy headings.
If other nonalloy shapes
Rectangular or square cross-section high-carbon wire uses different 7215 bar/wire headings.
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Import Tips & Compliance
• Provide tensile strength test results proving heat treatment efficacy; comply with aerospace material specs (e.g
• MS20995); avoid any surface treatments that trigger 'further worked' reclassification
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