thread plug gage

thread plug gage

[′thred ‚pləg ‚gāj]
(design engineering)
A thread gage used to measure female screw threads.
References in periodicals archive ?
In addition, development of Apeiron's Reference Precision Measurement Machine, a quarter of a million dollar machine based on its laser technology, has been funded by the Quality Engineering Test Establishment to measure thread plug gages to 25 microinch accuracy for the Canadian defense industry.