2a thread class right-hand 0.875" thread length hexagon head style 0.875" grip length 18 thread quantity per inch cadmium or zinc surface treated unc thread series
3a thread class right-hand 0.313" thread length dished hexagon head style 0.428" grip length 32 thread quantity per inch cadmium surface treated unjf thread series
3a thread class right-hand 0.625" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.665" thread length 4.120" overall length 14 thread quantity per inch shank dia 1.0550 in. min cadmium surface treated ball uns thread series
3a thread class right-hand 0.440" thread length hexagon head style 0.090" grip length 24 thread quantity per inch phosphate surface treated unf thread series