3a thread class right-hand 0.735" thread length dished hexagon head style 1.302" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.323" thread length flat countersunk head style 0.428" grip length 32 thread quantity per inch aluminum surface treated unjf thread series
3a thread class right-hand 0.323" thread length flat countersunk head style 0.490" grip length 32 thread quantity per inch aluminum surface treated unjf thread series
Used on F-15S. 3a thread class right-hand 0.382" thread length flat countersunk undercut head style 0.302" grip length 32 thread quantity per inch aluminum surface treated unjf thread series
Used on level 1 / subsafe;seawolf class ssn. 2a thread class right-hand 0.670" thread length hexagon head style 20 thread quantity per inch unc thread series
2a thread class right-hand 0.350" thread length 0.440" grip length 24 thread quantity per inch navy special project truncated cone hexagon head passivate surface treated unf thread series