2b single mounting facility thread class 3.156" overall length 24 single mounting facility thread quantity per inch black handle tap, circuit selector unc single mounting facility thread series
2.750" overall length 2.500" overall width 24 single mounting facility thread quantity per inch tap, circuit selector unc single mounting facility thread series
2b thread class right-hand 2.219" overall length 1.000" overall width 40 thread quantity per inch proveded with 6 insulated terminals 3 on each side unc thread series