2a thread class right-hand 0.501" thread length hexagon head style 0.250" grip length 16 thread quantity per inch cadmium surface treated unc thread series
2a thread class right-hand 1.125" thread length hexagon head style 0.125" grip length 20 thread quantity per inch cadmium or zinc surface treated unf thread series
3a thread class right-hand 0.813" thread length hexagon head style 20 thread quantity per inch one grooved 0.094 in. w, 0.078 in. deep unf thread series
2a thread class right-hand 0.615" thread length hexagon head style 24 thread quantity per inch 0.359 in. dia by 0.062 in. lg head relief unf thread series
3a thread class right-hand 0.500" thread length dee chamfer head style 0.688" grip length 20 thread quantity per inch 0.438 in. dia 0.031 in. radius thd relief unf thread series
2a thread class right-hand 1.000" thread length hexagon head style 1.000" grip length 18 thread quantity per inch phosphate surface treated unc thread series
2a thread class right-hand 0.375" thread length round w/wrench flats chamfered head style 20 thread quantity per inch chamfer extended washer 0.031 in. dia to be 0.685 in. min to 0.689 in. max cadmium surface treated unc thread series
3a thread class right-hand 0.514" thread length hexagon head style 4.110" grip length 28 thread quantity per inch passivate surface treated unf thread series
