3a thread class right-hand 0.815" thread length dished hexagon head style 1.990" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
Used on pacer dawn. 2a thread class right-hand 0.213" thread length pan head style 32 thread quantity per inch passivate surface treated unc thread series
Used on F-16. 3a thread class right-hand 0.338" thread length flat countersunk head style 0.302" grip length 32 thread quantity per inch cadmium surface treated unjf thread series