3a thread class right-hand 1.578" thread length double hexagon extended washer head style 11 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.354" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
2a thread class right-hand 0.589" thread length flat countersunk head style 56 thread quantity per inch plastic screw surface treated unc thread series
3a thread class right-hand 0.291" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unjf thread series
3a thread class right-hand 0.433" thread length flat countersunk head style 32 thread quantity per inch navy special project cadmium screw surface treated unjf thread series
