3b thread class right-hand 1.500" overall length 1.500" overall width 32 thread quantity per inch 0.683 in. cutout on one side chromate surface treated square shape unc thread series
3b thread class right-hand 1.688" overall length 1.688" overall width 32 thread quantity per inch 0.865 in. cutout on one side chromate surface treated square shape unc thread series