3a thread class right-hand spline extended washer head style 2.434" grip length 24 thread quantity per inch bolt tension nickel alloy 718 unjf thread series
Used on B52. 3a thread class right-hand 0.438" thread length dished hexagon head style 3.740" grip length 24 thread quantity per inch aluminum surface treated unjf thread series
3a thread class right-hand 0.528" thread length dished hexagon head style 1.490" grip length 20 thread quantity per inch bolt tension, hex head, close tolerance unjf thread series
Used on e-3 aircraft. 3a thread class right-hand 0.553" thread length dished hexagon head style 0.865" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.345" thread length 2.427" grip length 32 thread quantity per inch bolt, tension, hex head cadmium surface treated unjf thread series
3a thread class right-hand 0.578" thread length dished hexagon head style 1.190" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on B-52. 3a thread class right-hand 0.425" thread length dished hexagon head style 3.240" grip length 28 thread quantity per inch bolt tension hex head passivate surface treated unjf thread series