2a thread class right-hand 0.472" thread length flat countersunk head style 20 thread quantity per inch cadmium or zinc surface treated unc thread series
3a thread class right-hand 0.166" thread length headless (setscrew) head style 56 thread quantity per inch cadmium or zinc surface treated unc thread series
3a thread class right-hand 0.250" thread length headless (setscrew) head style 24 thread quantity per inch cadmium or zinc surface treated unc thread series
Used on spec item. 3a thread class right-hand 0.875" thread length headless (setscrew) head style 32 thread quantity per inch cadmium or zinc surface treated unc thread series
3a thread class right-hand 0.250" thread length headless (setscrew) head style 24 thread quantity per inch cadmium head or zinc head surface treated unc thread series
3a thread class right-hand 1.000" thread length headless (setscrew) head style 24 thread quantity per inch cadmium or zinc surface treated unf thread series
2a thread class right-hand 0.479" thread length fillister head style 24 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 0.625" thread length fillister head style 18 thread quantity per inch cadmium or zinc screw surface treated unc thread series
2a thread class right-hand 0.312" thread length fillister head style 32 thread quantity per inch cadmium or zinc screw surface treated unf thread series
2a thread class right-hand 0.188" thread length round head style 56 thread quantity per inch navy special project passivate screw surface treated unc thread series