2a thread class right-hand 0.345" thread length headless (setscrew) head style 32 thread quantity per inch slot cut on perimeter, parallel to longitudinal axis 0.040 in. w.0.030 in. deep full length unf thread series
Used on mrap - cougar. 3a thread class right-hand 0.375" thread length headless (setscrew) head style 20 thread quantity per inch cadmium surface treated unc thread series