SPI 75887687 34-218-8 4-48 UNF 2B NO GO Thread Plug Gage

This SPI 75887687 (manufacturer number 34-218-8) is a 4-48 UNF class 2B NO GO thread plug gage for inspecting internal threads. The NO GO member checks that the pitch diameter of a tapped hole or nut is not larger than the maximum limit for a 2B fit, so it should enter no more than a few turns. A 4-48 UNF thread has a 0.112 in nominal major diameter and 48 threads per inch. The gage is new and comes in its original sealed plastic sleeve with a certificate of inspection that lists 4-48 UNF thread data. Verify the certificate and gage member designation against the label before use.

Product Specifications