3a thread class right-hand 0.553" thread length dished hexagon head style 0.096" hole diameter 1.302" grip length 24 thread quantity per inch one hole 0.096 - 0.116 in. dia in shank; three holes 0.070-0.080 in. dia in head unjf thread series
Used on 5895-01-435-0571. 2a thread class right-hand 0.115" thread length pan head style 56 thread quantity per inch passivate surface treated unc thread series
Used on f-18 fighter aircraft. 3a thread class right-hand 0.338" thread length pan no. 2 head style 32 thread quantity per inch (navy) screw, machine; boeing bolt-pan head, gear drive unjc thread series