2a thread class right-hand 0.562" thread length hexagon head style 0.062" grip length 16 thread quantity per inch with one drilled hole in head unc thread series
3a thread class right-hand 2.000" thread length 10 thread quantity per inch cross-section of eye rounded to 21/32 in. dia round, closed unc thread series
2a thread class right-hand 0.214" thread length watertight head style 56 thread quantity per inch navy special project passivate screw surface treated unc thread series