2a thread class right-hand 0.500" thread length flat countersunk head style 24 thread quantity per inch anodize screw surface treated unc thread series
2a thread class right-hand 0.390" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
Used on preprovisioning support navicp is poe. 3a thread class right-hand 2.5060" thread length hexagon head style 32 thread quantity per inch passivate screw surface treated essential to weapon system performance or operation, or the preservation of life or safety of operating personnel unjc thread series
Used on preprovisioning support navicp is poe. 3a thread class right-hand 0.7901" thread length hexagon head style 24 thread quantity per inch passivate screw surface treated unjf thread series