2b thread class right-hand 2.376" overall length 1.626" overall width 32 thread quantity per inch cadmium surface treated hood type w/flange unc thread series
2b single mounting facility thread class 4.813" overall length 4.125" overall width 20 single mounting facility thread quantity per inch item must comply with rqmt of the desc production standard no. L01784 tap, circuit selector unc single mounting facility thread series
2a single mounting facility thread class 0.380" single mounting facility thread length 2.060" overall length tap, circular, bushing mount unef single mounting facility thread series