2a thread class right-hand headless (setscrew) head style 32 thread quantity per inch 0.024 in. deep by 0.380 in. lg flat on end opposit drive unc thread series
2a thread class left-hand 6.918" thread length flat chamfer head style 18 thread quantity per inch 32 micro inch finish on point passivate surface treated unc thread series
3a thread class right-hand 0.306" thread length headless (setscrew) head style 32 thread quantity per inch cadmium fastener surface treated unf thread series