3a thread class right-hand 1.000" thread length headless (setscrew) head style 32 thread quantity per inch navy special project 2 holes drilled 90 deg apart opposite hex drive end 0.045 in. min, 0.051 in. max dia passivate surface treated unf thread series
3a thread class right-hand 0.428" thread length headless (setscrew) head style 0.053" hole diameter 32 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand headless (setscrew) head style 14 thread quantity per inch navy special project hole thry hex socket 0.188 in. dia uns thread series