3a thread class right-hand 2.800" thread length hexagon head style 0.045" hole diameter 28 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 0.497" thread length hexagon head style 16 thread quantity per inch item includes two undercuts, shoulder undercut 0.561" from the head, 0.059" long, 0.494 inch dia, thread undercut 0.093" long, 0.032" dia phosphate surface treated unc thread series
3a thread class right-hand 1.540" thread length pan head style 18 thread quantity per inch serrated band 0.180 in. wide, 0.618 in. dia, located 0.380" from the head unf thread series
3a thread class right-hand 0.630" thread length hexagon countersunk undercut head style 18 thread quantity per inch silver surface treated unjf thread series
Used on F-16. 3a thread class right-hand 0.444" thread length hexagon head style 32 thread quantity per inch cadmium threads surface treated unjf thread series