3a thread class right-hand 0.500" thread length flat chamfer head style 0.031" hole diameter 40 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.500" thread length flat chamfer head style 0.047" hole diameter 32 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.531" thread length flat countersunk undercut head style 24 thread quantity per inch cadmium screw surface treated unf thread series
3a nut thread thread class right-hand 0.500" stud thread thread length 2.740" overall length 20 stud thread thread quantity per inch navy special project unf nut thread thread series
3a thread class right-hand 0.492" thread length hexagon head style 0.057" hole diameter 0.500" grip length 32 thread quantity per inch unjf thread series
3a thread class right-hand 0.366" thread length double hexagon w/hole head style 0.047" hole diameter 32 thread quantity per inch navy special project cadmium surface treated unjf thread series
3a thread class right-hand 0.303" thread length hexagon head style 0.062" hole diameter 28 thread quantity per inch silver surface treated unjf thread series
