Used on mark iv weather satellite. 2a thread class right-hand 0.625" thread length hexagon countersunk head style 0.093" hole diameter 20 thread quantity per inch navy special project passivate surface treated unc thread series
3a thread class right-hand 0.451" thread length hexagon head style 0.485" grip length 32 thread quantity per inch ceramic surface treated unjf thread series
3a thread class right-hand 0.702" thread length hexagon countersunk head style 28 thread quantity per inch extended washer 0.501 in. dia x 0.150 in. min, 0.188 in. max thick unf thread series
3a thread class right-hand 1.094" thread length hexagon head style 4.046" grip length 16 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.750" thread length hexagon head style 20 thread quantity per inch weapon system essential passivate fastener surface treated unc thread series
3a thread class right-hand 0.381" thread length hexagon head style 0.115" grip length 32 thread quantity per inch weapon system essential passivate surface treated unf thread series
3a thread class right-hand 0.620" thread length hexagon head style 0.435" grip length 32 thread quantity per inch nickel surface treated unjf thread series
3a thread class right-hand 0.620" thread length double hexagon w/hole head style 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.413" thread length spline drive shear head head style 1.052" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
Used on aircraft,f-16. 3a thread class right-hand 0.658" thread length spline drive shear head head style 1.302" grip length 20 thread quantity per inch cadmium surface treated unjf thread series