2a thread class right-hand 1.500" thread length 16 thread quantity per inch gfurnished w/ flat washers zinc surface treated square bend unc thread series
2a thread class right-hand 1.000" thread length 20 thread quantity per inch bolt is supplied with 2 hex nuts; for 1/2 inch pipe size round bend unc thread series
2a thread class right-hand 1.687" thread length 20 thread quantity per inch navy special project passivate surface treated round bend unf thread series