Used on 1520-01-8250; helicopter,attack. 3a thread class right-hand flush countersunk head style 0.375" grip length 5380 double pounds per square inch shear strength cadmium body surface treated unjf thread series
Used on fighter aircraft-first (f18 e/f). 3a thread class right-hand 0.298" thread length dished hexagon head style 32 thread quantity per inch nonlocking, plated, drilled shank unjf thread series
3a thread class right-hand 0.370" thread length dished hexagon head style 0.125" grip length 28 thread quantity per inch phosphate surface treated unjf thread series
