3a thread class right-hand 3.8545" overall length 0.3745" bore diameter 20 thread quantity per inch chromium inner member surface treated ball type unf thread series
3a thread class right-hand 0.2500" thread length 1.0313" overall length 32 thread quantity per inch hexagonal wrench socket in the head of the stud; means for relubrication cam follower unf thread series
3a thread class right-hand 1.1715" overall length 0.1245" bore diameter 32 thread quantity per inch inspect magnetic particle chromium inner member surface treated ball type unf thread series