3a thread class right-hand 0.444" thread length flat countersunk head style 0.678" grip length 28 thread quantity per inch 1thd hole in top of head 0.138-32 unjc-3b; threaded hole 0.300 in. min 0.345 in. max dp; counterbore, 0.145 in. min lg, 0.150 in. max lg; 0.060 in. wide in. wide in unthreaded shank; distant from top of head to beginning of injection port 0.390 unjf thread series
3a thread class right-hand 0.378" thread length flat countersunk head style 0.490" grip length 28 thread quantity per inch aluminum surface treated unjf thread series
3a thread class right-hand 0.378" thread length flat countersunk head style 0.365" grip length 28 thread quantity per inch aluminum surface treated unjf thread series
3a thread class right-hand 0.378" thread length flat countersunk head style 0.428" grip length 32 thread quantity per inch aluminum surface treated unjf thread series
2a thread class right-hand 0.219" thread length flat countersunk head style 32 thread quantity per inch as differentiated by material which must conform to ships parts control center special quality control provisions unc thread series
3a thread class right-hand 0.433" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated unjf thread series
3a thread class right-hand 0.077" thread length flat countersunk head style 40 thread quantity per inch cadmium fastener surface treated unjc thread series
