2a thread class right-hand 0.273" thread length flat chamfer head style 36 thread quantity per inch drilled hole 0.064 in. dia by 0.374 in. deep along center line of head unf thread series
3a thread class right-hand 0.094" thread length headless (setscrew) head style 56 thread quantity per inch color gold cadmium surface treated unc thread series
2a thread class right-hand 0.250" thread length fillister head style 0.046" hole diameter 32 thread quantity per inch cadmium screw surface treated unc thread series