3a thread class right-hand 0.438" thread length fillister head style 0.046" hole diameter 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 1.280" thread length headless (setscrew) head style 20 thread quantity per inch point offset .056 inch from center cadmium surface treated unf thread series
3a thread class right-hand 0.428" thread length headless (setscrew) head style 40 thread quantity per inch navy special project passivate surface treated unc thread series
2a thread class right-hand 0.219" thread length fillister head style 0.047" hole diameter 32 thread quantity per inch cadmium surface treated unc thread series