3a thread class right-hand 0.481" thread length hexagon head style 0.062" grip length 32 thread quantity per inch tensile strength at room temperature passivate surface treated unf thread series
3a thread class right-hand 0.615" thread length flat countersunk head style 0.802" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.812" thread length hexagon head style 0.188" grip length 20 thread quantity per inch cadmium surface treated unf thread series