2a single mounting facility thread class right-hand single mounting facility 1.109" overall length 0.859" overall width 48 single mounting facility thread quantity per inch unc single mounting facility thread series
2a all threaded hole thread class 2.532" overall length 32 all threaded hole thread quantity per inch three-position SELCTION3CTHF1BJAMB17.0 unc all threaded hole thread series