2a single mounting facility thread class 0.437" single mounting facility thread length 2.997" overall length tap, circular, bushing mount unef single mounting facility thread series
2b thread class right-hand 3.536" overall length 1.792" overall width 18 thread quantity per inch cadmium surface treated straight type w/cable clamp unef thread series
2b thread class right-hand 2.000" overall length 0.542" overall width 28 thread quantity per inch cadmium surface treated straight type w/cable clamp unef thread series