Van Keuren Standard Thread Plug Gages GO/NOGO Van Keuren's Thread Gages allow you to inspect the pitch diameter and the functional thread for internal threaded products.All stock Thread Plug Gages are made to Class X tolerances per ASME B1.2 (Unified Inch Screw Threads), ASME B18.29.1 (STI Inch Screw Threads), and ASME B1.16M (Metric M Series Screw Threads).A Certificate of Accuracy is included with each gage.Available in 2B or 3B, and each Thread Plug Gage is marked with nominal size, threads per inch, class of fit and pitch diameters.Features include... 2-3/8 - 12 UN 3B Threads GO and NO GO Set Certificate of Accuracy included Need a Certificate of Calibration? None of our Thread Gage manufacturers include a Certificate of Calibration with their gages off-the-shelf. If you need a Certificate of Calibration, that is a NIST-traceable document with verified readings, this is an additional Calibration Service that you would need to order with this gage. Click Here to order the Calibration Service for this Thread Plug Gage.
