2a thread class right-hand 0.214" thread length headless (setscrew) head style 56 thread quantity per inch two locking elements required unc thread series
2a thread class right-hand 0.125" thread length headless (setscrew) head style 32 thread quantity per inch cadmium or zinc surface treated unc thread series
2a thread class right-hand 0.126" thread length headless (setscrew) head style 32 thread quantity per inch point blunted cadmium surface treated unc thread series
3a thread class right-hand 0.880" thread length headless (setscrew) head style 28 thread quantity per inch two 0.070 inch dia holes thru socket end radial relation to hex optional cadmium surface treated unf thread series