3a thread class right-hand 0.280" thread length hexagon head style 20 thread quantity per inch undercut for thread relief cadmium surface treated unf thread series
3a thread class right-hand 1.375" thread length headless (setscrew) head style 24 thread quantity per inch 125 microinch rms finish od of point top unf thread series
3a thread class right-hand 0.890" thread length hexagon head style 4.000" grip length 24 thread quantity per inch cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.256" thread length fillister head style 0.046" hole diameter 36 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.625" thread length fillister head style 0.046" hole diameter 24 thread quantity per inch cadmium or zinc screw surface treated unc thread series