3a thread class right-hand 0.100" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unjc thread series
2a nut thread a thread class right-hand nut thread a 2.500" nut thread a thread length 25.625" overall length 12 nut thread a thread quantity per inch unf nut thread a thread series
2a nut thread a thread class right-hand nut thread a 2.500" nut thread a thread length 63.125" overall length 12 nut thread a thread quantity per inch unf nut thread a thread series
3a thread class right-hand 0.400" thread length flat countersunk head style 1.365" grip length 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.601" thread length dished hexagon head style 2.990" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.262" thread length hexagon head style 40 thread quantity per inch passivate screw surface treated socket hole in thread end, length 0.040 width across flats 0.050 to 0.051 unc thread series
right-hand nut thread 0.3775" nut thread thread length 1.940" overall length 18 nut thread thread quantity per inch both ends undercut 0.0625 in. wide, 0.03125 in. deep between thread shouldered unc nut thread thread series