3a thread class right-hand 0.190" thread length headless (setscrew) head style 24 thread quantity per inch two holes 0.062 in. dia 90.0 deg apart 0.140 in. deep 0.125 in. from end drilled thru threads for plastic threadlocks mil-n-18352 unf thread series
3a thread class right-hand 0.188" thread length headless (setscrew) head style 40 thread quantity per inch black color finish cadmium surface treated unc thread series