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.