2a thread class right-hand 0.200" thread length flat chamfer head style 32 thread quantity per inch undercut 0.025 in. min lg, 0.035 in. max lg from threaded end; 0.315 in. min dia, 0.316 in. max dia oxide surface treated unc thread series
2a thread class right-hand 0.156" thread length flat chamfer head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.200" thread length button head style 40 thread quantity per inch lockwasher has a split passivate surface treated unc thread series
2a thread class right-hand 0.260" thread length flat chamfer head style 32 thread quantity per inch navy special project passivate surface treated unc thread series
Used on prowler ea-6b aircraft;aircraft, intruder a-6e. 2a thread class right-hand 0.190" thread length flat countersunk head style 32 thread quantity per inch cadmium surface treated unc thread series
2a thread class right-hand 0.168" thread length flat countersunk head style 40 thread quantity per inch navy special project cadmium surface treated unc thread series
2a thread class right-hand 0.287" thread length flat countersunk head style 32 thread quantity per inch top surface of head colored light blue cadmium surface treated unf thread series