3a thread class right-hand 0.316" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.152" thread length flat countersunk head style 56 thread quantity per inch navy special project cadmium screw surface treated unc thread series
3a thread class right-hand 0.500" thread length flat chamfer head style 0.062" hole diameter 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.391" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated low friction, dry film lubricant coating unf thread series
3a thread class right-hand 0.781" thread length hexagon head style 1.438" grip length 20 thread quantity per inch cadmium surface treated unf thread series
2a nut thread a thread class right-hand nut thread a 1.469" nut thread a thread length 16.125" overall length 16 nut thread a thread quantity per inch cadmium or zinc surface treated unf nut thread a thread series
Used on rg-33 mrap. 2a thread class right-hand 0.750" thread length hexagon head style 20 thread quantity per inch passivate surface treated unc thread series