3a thread class right-hand 0.716" thread length hexagon head style 20 thread quantity per inch undercut dia 0.425 in. min passivate surface treated unf thread series
3a thread class right-hand 0.526" thread length double hexagon w/hole head style 28 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.526" thread length double hexagon w/hole head style 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.589" thread length double hexagon w/hole head style 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.589" thread length double hexagon w/hole head style 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.776" thread length double hexagon w/hole head style 24 thread quantity per inch wrenching flat on one end unjf thread series
2a thread class right-hand 0.949" thread length hexagon head style 28 thread quantity per inch shoulder has flat to 0.342 in. cadmium surface treated unf thread series
3a thread class right-hand 0.375" thread length hexagon head style 24 thread quantity per inch dry film lube on grip cadmium threads or nickel threads surface treated unjf thread series