2a thread class right-hand 0.400" thread length flat countersunk head style 32 thread quantity per inch phosphate screw surface treated unf thread series
2a thread class right-hand 0.484" thread length flat chamfer head style 56 thread quantity per inch passivate screw surface treated finish-blacken per kps-5b. 100 unf thread series
2a thread class right-hand 0.500" thread length spade head style 32 thread quantity per inch passivate screw surface treated drilled hole in head 0.132 in. dia unc thread series
2a thread class right-hand 1.750" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
Used on ac-130h, mc-130h, mc-130, helicopter ah-1w. 2a thread class right-hand 0.407" thread length watertight head style 32 thread quantity per inch passivate screw surface treated unc thread series