2a thread class right-hand 1.000" thread length hexagon head style 12 thread quantity per inch cadmium surface treated concentric hole unthreaded unf thread series
3a thread class right-hand 0.310" thread length dished hexagon head style 3.688" grip length 24 thread quantity per inch retaining element in. shank cadmium surface treated unjf thread series
2a thread class right-hand 0.085" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.401" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
Used on mrap-rg-33 armored utility vehicle (auv). 3a thread class right-hand 0.620" thread length hexagon head style 0.122" grip length 32 thread quantity per inch unjf thread series
3a thread class right-hand 0.320" thread length hexagon head style 28 thread quantity per inch first shoulder phosphate coated, second shoulder cadmium plated cadmium threads surface treated unf thread series
3a thread class right-hand 0.745" thread length flat chamfer head style 20 thread quantity per inch cadmium fastener surface treated unrc thread series
2a thread class right-hand 0.200" thread length round w/wrench flats head style 1.061" grip length 32 thread quantity per inch hole in. head 0.062 in. min 0.064 max dia unc thread series
