3a thread class right-hand 0.315" thread length hexagon head style 1.400" grip length 32 thread quantity per inch two holes 90 degrees apart unjf thread series
3a thread class right-hand 0.500" thread length hexagon head style 0.047" hole diameter 0.625" grip length 36 thread quantity per inch unf thread series
3a thread class right-hand 0.740" thread length double hexagon extended washer head style 1.940" grip length 28 thread quantity per inch unjf thread series
3a thread class right-hand 0.740" thread length double hexagon extended washer head style 2.315" grip length 28 thread quantity per inch unjf thread series