3a thread class right-hand 0.713" thread length hexagon head style 0.975" grip length 20 thread quantity per inch passivate surface treated unf thread series
2a thread class right-hand 1.125" thread length hexagon head style 0.062" hole diameter 14 thread quantity per inch zinc surface treated unc thread series
2a thread class right-hand 0.405" thread length knurled no. 1 head style 32 thread quantity per inch 4-40 tapped hole 0.310 deep drilled on longitudinal axis concentric to head cadmium surface treated unc thread series