3a thread class right-hand 0.375" thread length flat countersunk head style 48 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.406" thread length hexagon head style 0.375" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.344" thread length hexagon head style 1.500" grip length 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.641" thread length hexagon head style 6.938" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.624" thread length hexagon head style 1.172" grip length 20 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 0.625" thread length hexagon head style 0.547" grip length 20 thread quantity per inch oxide film surface treated unf thread series
3a thread class right-hand 0.922" thread length hexagon head style 1.546" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.953" thread length hexagon head style 1.423" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.874" thread length hexagon head style 2.359" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.874" thread length hexagon head style 2.234" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.921" thread length hexagon head style 2.422" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.874" thread length hexagon head style 2.734" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3b thread class 24 thread quantity per inch self tapping; pilot dia 0.505 in. min 0.510 in. max; 3 holes 0.146 in. min 0.166 in. max spaced 120 deg apart on periphery cadmium surface treated plain unf thread series