3a thread class right-hand 0.250" thread length pan no. 2 head style 28 thread quantity per inch thd relieved under head phosphate surface treated unf thread series
3a thread class right-hand 0.658" thread length flat chamfer head style 32 thread quantity per inch finish color black oxide surface treated unc thread series
3a thread class right-hand 0.158" thread length flat chamfer head style 32 thread quantity per inch finish color black oxide surface treated unc thread series
3a thread class right-hand 0.291" thread length flat countersunk head style 1.365" grip length 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.437" thread length hexagon head style 4.671" grip length 28 thread quantity per inch oxide film surface treated unf thread series
3a thread class right-hand 0.394" thread length double hexagon head style 1.052" grip length 24 thread quantity per inch nickel surface treated unjf thread series
3a thread class right-hand 0.755" thread length flat countersunk head style 2.428" grip length 20 thread quantity per inch cadmium surface treated unjf thread series
