3a thread class right-hand 0.355" thread length hexagon head style 2.178" grip length 24 thread quantity per inch cadmium surface treated unjf thread series
2a thread class right-hand 1.313" thread length fillister head style 0.070" hole diameter 32 thread quantity per inch passivate screw surface treated unf thread series
3a thread class right-hand 0.380" thread length round extended washer head style 32 thread quantity per inch thd relief 0.080 in. w by 0.087 in. dia unc thread series