Used on c-17a support equipment. 2a thread class right-hand 1.250" thread length hexagon head style 13 thread quantity per inch altered from MS16208-116 with one 0.12 in. hole thru head. passivate surface treated unc thread series
Used on hardware. 2a thread class right-hand 1.750" thread length hexagon head style 11 thread quantity per inch uncoated, self-locking unc thread series