2a nut thread a thread class left-hand nut thread b 2.000" nut thread b thread length 1.208 feet overall length 24 nut thread a thread quantity per inch unf nut thread a thread series
Used on data recorder. 2a thread class pan no. 2 head style 40 thread quantity per inch with groove between shoulders passivate surface treated unc thread series
3a thread class right-hand 0.298" thread length pan head style 0.552" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.506" thread length flat countersunk head style 0.302" grip length 24 thread quantity per inch aluminum surface treated unjf thread series
