2a thread class right-hand 0.615" thread length hexagon head style 24 thread quantity per inch 0.235 in. lg unthd shank includes undercut 0.060 in. w by 0.360 in. dia adjacent to shoulder phosphate manganese surface treated unf thread series
3a thread class right-hand 1.300" thread length 3.430" overall length 20 thread quantity per inch end of shank to have 0.280 dia by 0.100 lg tip for riveting purposes round, closed unf thread series
2a thread class right-hand 0.159" thread length flat countersunk head style 64 thread quantity per inch navy special project passivate screw surface treated unc thread series
Used on aircraft, eagle f-15;support equipment, b-1 aircraft;engine, aircraft, f100-pw-100 (f-15a/b/c/d). 3a thread class right-hand 1.500" thread length flat chamfer head style 24 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.317" thread length flat chamfer head style 0.036" hole diameter 48 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 1.450" thread length 2.960" overall length 24 thread quantity per inch one keyway in thds 1.270 in. lg, 0.093 in. min 0.098 in. max w 0.062 in. min 0.064 in. max deep chromate surface treated round, closed unf thread series
