2a thread class right-hand 0.190" thread length fillister head style 0.062" hole diameter 28 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 0.359" thread length headless (setscrew) head style 72 thread quantity per inch locking element 0.062 in. from drive end unf thread series
3a thread class right-hand 0.297" thread length flat chamfer head style 24 thread quantity per inch thread relieved under head 0.140 in. min 0.145 in. max by 0.046 in. lg unc thread series
2a thread class right-hand 0.565" thread length headless (setscrew) head style 28 thread quantity per inch two 0.018 in. wide by 0.0055 in. deep groove located 0.050 in. unf thread series