1a thread class right-hand 0.780" thread length double hexagon w/hole head style 24 thread quantity per inch navy special project cadmium surface treated unf thread series
3a thread class right-hand 0.677" thread length hexagon head style 0.065" hole diameter 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.531" thread length hexagon head style 0.937" grip length 24 thread quantity per inch cadmium surface treated unf thread series
3a thread class right-hand 0.255" thread length hexagon head style 2.745" grip length 20 thread quantity per inch cadmium surface treated unf thread series