Vermont Gage 1.4375-8 UNJ-3B Go No-Go Thread Plug Gage

The Vermont Gage 1.4375-8 UNJ-3B Go/No-Go Thread Plug Gage is a precision inspection tool used to verify the dimensional accuracy and pitch diameter of internal 1-7/16"-8 UNJ Class 3B threads. It provides a GO pitch diameter of 1.3563 in. and a NO-GO pitch diameter of 1.3634 in., enabling quick go/no-go checks on manufacturing and calibration workflows. Thread size and series: 1.4375-8 UNJ, Class 3B internal thread, in a working thread plug gage assembly. Manufactured from precision hardened tool steel for high-accuracy metrology, it is designed for internal thread inspection in aerospace, defense, automotive, and precision manufacturing environments for production inspection and quality control.