3b thread class right-hand 2.3650" overall length 0.2495" bore diameter 20 thread quantity per inch magnetic particle inspection required cadmium rod end body surface treated ball type unf thread series
3b thread class right-hand 2.6880" overall length 0.4370" bore diameter 20 thread quantity per inch magnafluxed cadmium rod end body surface treated ball type unf thread series
3b thread class right-hand 2.7810" overall length 0.4995" bore diameter 20 thread quantity per inch identified with letter m on shank for aircraft use ball type unf thread series