Used on ind light. 3a single threaded bushing thread class 2.438" overall length 20 single threaded bushing thread quantity per inch cylindrical w/flange unf single threaded bushing thread series
2a thread class right-hand 3.250" overall length 1.512" overall width 24 thread quantity per inch cadmium surface treated straight type w/cable clamp unef thread series
2a single mounting facility thread class 0.437" single mounting facility thread length 1.790" overall length tap, circular, bushing mount unef single mounting facility thread series