3a thread class right-hand 0.688" thread length hexagon head style 14 thread quantity per inch cadmium surface treated concentric hole unthreaded unc thread series
3a thread class right-hand 0.344" thread length hexagon head style 0.750" grip length 24 thread quantity per inch cadmium threads surface treated unf thread series
3a thread class right-hand 0.250" thread length hexagon head style 0.062" hole diameter 0.310" grip length 28 thread quantity per inch unf thread series
3a thread class right-hand 0.531" thread length hexagon head style 3.000" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.500" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.219" thread length fillister head style 0.062" hole diameter 28 thread quantity per inch cadmium screw surface treated unf thread series