2a thread class right-hand 0.500" thread length hexagon head style 0.690" grip length 20 thread quantity per inch passivate surface treated unc thread series
2a thread class right-hand 0.750" thread length knurled no. 1 head style 32 thread quantity per inch third shoulder 0.207 in. to 0.212 in. dia, 0.125 in.lg cadmium surface treated unf thread series
3a thread class right-hand 0.400" thread length hexagon head style 6.115" grip length 28 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.875" thread length hexagon head style 0.359" grip length 18 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.675" thread length dee head style 20 thread quantity per inch cadmium threads or chromium threads or chromate zinc threads surface treated concentric hole unthreaded unf thread series
