0.1562" overall width 0.1250" bore diameter torque not to exceed .12 gm cm for a thrust load of 68 gms shaft vertical non-loading groove, non-separable
3a thread class right-hand 4.2500" overall length 0.7495" bore diameter 14 thread quantity per inch 0.1560 in. keyway slot in shank ball type unf thread series
3a thread class right-hand 2.3020" overall length 0.3120" bore diameter 24 thread quantity per inch chromium surface treated ball type unf thread series