2a thread class right-hand 1.750" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 1.438" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 1.188" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.844" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unf thread series