Comparator Stage Precision Leveling Screws from Japan
Micrometer-adjustable leveling screws for optical comparator workstages, providing sub-micron height adjustments for perfect part alignment. Exclusive to 9031.80.40 profile projectors. Classified under 9031.90.70.00 machine parts.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Include thread specs and adjustment range proving comparator stage fit
• Document as OEM replacement parts with part numbers
• Distinguish from general machine screws (7318) via dedicated use proof