3a thread class right-hand 0.360" thread length flat countersunk head style 32 thread quantity per inch two holes 0.064 in. diameter, ONE0.132 in. from point, one 0.517 in. from head cadmium surface treated unf thread series
3a thread class right-hand 0.880" thread length headless (setscrew) head style 32 thread quantity per inch groove 0.060 in.lg 0.500 in. fromend unf thread series
2a thread class right-hand 0.625" thread length headless (setscrew) head style 20 thread quantity per inch 1/4 in. radius on slotted end phosphate surface treated unc thread series
Used on f-15 aircraft. 3a thread class right-hand 0.348" thread length flat chamfer head style 0.046" hole diameter 32 thread quantity per inch passivate surface treated unf thread series
