3a thread class right-hand 0.500" thread length headless (setscrew) head style 16 thread quantity per inch cadmium or zinc surface treated unc thread series
2a thread class right-hand 0.398" thread length hexagon head style 28 thread quantity per inch w/header point cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.886" thread length hexagon head style 24 thread quantity per inch w/header point cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.636" thread length hexagon head style 24 thread quantity per inch w/header point cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.538" thread length hexagon head style 28 thread quantity per inch w/header point cadmium or zinc surface treated unf thread series