2b single mounting facility thread class 1.260" overall length 0.680" overall width 40 single mounting facility thread quantity per inch unc single mounting facility thread series
2a thread class right-hand 1.198" overall length 1.198" overall width 20 thread quantity per inch cadmium surface treated hood, top opening unef thread series
2a thread class right-hand 1.406" overall length 1.406" overall width 20 thread quantity per inch cadmium surface treated hood, top opening unef thread series
3b all threaded hole thread class 4.922" overall length 32 all threaded hole thread quantity per inch cylindrical w/flange unc all threaded hole thread series