Used on apl update. 3a thread class right-hand 0.47" thread length headless (setscrew) head style 16 thread quantity per inch orifice screw has drill hole of 0.46" through center length unc thread series
Used on mk48 mod5 mou. 3a thread class right-hand 0.312" thread length headless (setscrew) head style 36 thread quantity per inch passivate surface treated unf thread series