Used on stryker. 2a thread class right-hand 1.125" thread length hexagon head style 20 thread quantity per inch screw, hexagon head cap unc thread series
3a thread class right-hand 0.534" thread length crowned hexagon head style 3.375" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on F-15SA. 3a thread class right-hand 0.651" thread length double hexagon head style 1.250" grip length 20 thread quantity per inch bolt, shear passivate surface treated unjf thread series
2a thread class right-hand 0.50" thread length wing no. 4 head style 32 thread quantity per inch wing head thumb screw zinc surface treated unf thread series