Used on mrap - common nsn - 3 mrap variants and 2 other weapon systems.. right-hand 1.250" thread length hexagon head style 18 thread quantity per inch bolt, spcl 3/8 x 1-1/4 phc type unc thread series
Used on nsn 2320-01-097-0260 hemtt (heavy expanded mobility tactical truck); 2320-01-304-2277 and 2320-01-304-2278 pls(palletized loading system). 3a thread class 24 thread quantity per inch unf thread series
3a thread class right-hand 0.633" thread length hexagon head style 3.485" grip length 24 thread quantity per inch passivate surface treated unjf thread series
2a thread class right-hand 0.775" thread length hexagon head style 20 thread quantity per inch weapon system essential zinc surface treated unc thread series