3a thread class right-hand 0.782" thread length hexagon head style 5.062" grip length 20 thread quantity per inch cadmium surface treated unf thread series
3a thread class left-hand 0.490" thread length hexagon head style 0.060" grip length 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.350" thread length flat countersunk head style 0.490" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.406" thread length hexagon head style 1.000" grip length 32 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.500" thread length round head style 20 thread quantity per inch cadmium screw surface treated surface treatment, with supplementary golden color unc thread series
3a thread class right-hand 0.568" thread length double hexagon w/hole head style 0.050" hole diameter 1.240" grip length 24 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.450" thread length double hexagon w/hole head style 28 thread quantity per inch navy special project undercut at thread 0.175 in. min to 0.195 in. max dia by 0.062 in. min to 0.072 in. max w, undercut at head 0.220 in. min to 0.240 in. max dia by 0.030 in. min to 0.050 in. max w cadmium surface treated unf thread series
3a thread class right-hand 0.782" thread length double hexagon extended washer head style 1.969" grip length 28 thread quantity per inch navy special project cadmium surface treated unf thread series
