3b thread class left-hand 1.9682" overall length 0.3120" bore diameter 24 thread quantity per inch chromium inner member surface treated ball type unf thread series
3a thread class left-hand 1.9670" overall length 0.2495" bore diameter 24 thread quantity per inch chromium inner member surface treated ball type unf thread series
3a thread class right-hand 2.4380" overall length 0.3745" bore diameter 20 thread quantity per inch nas keyway in shank chromium inner member surface treated ball type unf thread series
2a thread class right-hand 0.3750" thread length 1.4062" overall length 20 thread quantity per inch w/means for relubrication, furnished w/2 metal plugs for stud ends oxide surface treated cam follower unf thread series