2a thread class right-hand 0.523" thread length dished hexagon head style 28 thread quantity per inch cadmium or zinc screw surface treated unc thread series
3a thread class right-hand 0.742" thread length double hexagon w/hole head style 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.680" thread length double hexagon w/hole head style 20 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.755" grip length 32 thread quantity per inch 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
3a thread class right-hand 0.366" thread length flat countersunk head style 1.178" grip length 24 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 0.366" thread length flat countersunk head style 4.615" grip length 24 thread quantity per inch cadmium surface treated unf thread series