2a thread class right-hand 0.210" thread length flat countersunk head style 32 thread quantity per inch m/f MS24693-C28 passivate surface treated unc thread series
2a thread class right-hand 0.191" thread length hexagon head style 32 thread quantity per inch cres uns S21800 passivate surface treated unc thread series
2a thread class right-hand 0.880" thread length hexagon head style 0.107" hole diameter 13 thread quantity per inch navy special project unc thread series
3a thread class right-hand 0.350" thread length flat chamfer head style 28 thread quantity per inch m/f NAS1351C4-28 passivate surface treated unf thread series
3a thread class right-hand 0.400" thread length flat chamfer head style 24 thread quantity per inch m/f MS16996-32 passivate surface treated unf thread series
2a thread class right-hand 0.256" thread length 32 thread quantity per inch navy special project lower 0.220 in. portion of head is diamond shaped; top portion is round passivate surface treated unc thread series
3a thread class right-hand 0.250" thread length flat chamfer head style 32 thread quantity per inch m/f MS16995-29; threaded portion under head 0.050 lg passivate surface treated unc thread series
Used on aircraft, hawkeye e-2c. 3a thread class right-hand 0.242" thread length flat countersunk head style 28 thread quantity per inch m/f NAS1604-3; unthreaded shoulder portion under head 0.250 in.dia cadmium surface treated unjf thread series
2a thread class right-hand 0.400" thread length pan head style 32 thread quantity per inch make from MS51957-48 passivate surface treated unc thread series
2a thread class right-hand 0.187" thread length flat countersunk undercut head style 32 thread quantity per inch passivate surface treated unc thread series