3a thread class right-hand 1.000" thread length flat countersunk head style 18 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.280" thread length fillister head style 56 thread quantity per inch yhreaded portion machined to a 0.066 in. dia 0.280 in. lg 0.160 in. from threaded end unc thread series
3a thread class right-hand 0.660" thread length crowned hexagon head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.188" thread length flat countersunk head style 56 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.250" thread length oval countersunk head style 40 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.221" thread length flat countersunk head style 18 thread quantity per inch cadmium screw surface treated unc thread series
