Corrosion-Resistant Ball Screw for Marine Winches from Japan
Duplex stainless steel ball screw with bronze nut for anchor winches and davit systems on offshore vessels. Saltwater corrosion resistance per ASTM standards, HTS 8483.40.80.00.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include material test reports (UNS S31803 duplex SS) and salt spray test results
• Document IP67 sealing and marine classification society approvals (ABS/DNV)
• Specify self-locking lead angle for safety-critical marine applications