3a thread class right-hand 0.400" thread length headless (setscrew) head style 32 thread quantity per inch drilled hole 0.033 in. dia, 0.141 in. from drive end cadmium surface treated unc thread series
3a thread class right-hand 0.295" 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 0.500" thread length headless (setscrew) head style 32 thread quantity per inch navy special project cadmium surface treated unc thread series