3a thread class right-hand 0.688" thread length flat chamfer head style 0.047" hole diameter 32 thread quantity per inch cadmium or zinc surface treated unf thread series
3a thread class right-hand 0.560" thread length flat chamfer head style 0.031" hole diameter 44 thread quantity per inch passivate surface treated unf thread series
3a thread class right-hand 1.250" thread length flat chamfer head style 0.062" hole diameter 20 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.281" thread length flat chamfer head style 0.046" hole diameter 24 thread quantity per inch cadmium surface treated unc thread series
3a thread class right-hand 0.080" thread length flat countersunk head style 56 thread quantity per inch chromate zinc screw surface treated unc thread series