Niigata Seiki

THREAD LIMIT PLUG GAUGE (ISO TYPE JIS / GPNP)

GO/NOGO gauge for checking accuracy of thread.
While the original JIS gauge has two classifications of NOGO gauge (for Inspection and for Manufacturing), there is no classification in ISO type JIS gauge.

USE

  • For Internal / external screw thread inspection

FEATURES

  • Enables to inspect whether threaded parts are within upper/lower limits of the screw’s prescribed dimensional precision.
  • Provided with inspection report

Material

  • Gauge part: Alloy tool steel
  • Handle part: Aluminum
  • Thread limit Gauge is used to perform GO/NOGO inspection based on the minimum and maximum dimensions prescribed for each screw grade.
  • For acceptance of a threaded part, GO gauge should thread without any difficulties and NOGO should not thread more than two complete revolutions.