3a thread class right-hand 0.669" thread length flat chamfer head style 0.070" hole diameter 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 1.125" thread length hexagon head style 0.070" hole diameter 0.437" grip length 20 thread quantity per inch 0.140 in. dia 0.125 in. deep hole drilled in center of head on longitudinal axis cadmium surface treated unc thread series
3a thread class right-hand 0.450" thread length flat countersunk head style 24 thread quantity per inch concentric hole along the longitudinal center line of bolt, 0.181 in. min, 0.187 in. max dia by 1.770 in. deep cadmium surface treated unjf thread series
3a thread class right-hand 1.130" thread length hexagon head style 0.071" hole diameter 24 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.625" thread length hexagon head style 0.250" grip length 32 thread quantity per inch cadmium surface treated unf thread series