3a thread class right-hand 0.626" thread length dished hexagon head style 3.115" grip length 18 thread quantity per inch cadmium surface treated unjf thread series
2a nut thread thread class right-hand nut thread 0.750" nut thread thread length 8.390" overall length 13 nut thread thread quantity per inch optional countersunk hole in center of nut threaded end shouldered unc nut thread thread series
2a thread class right-hand 4.320" thread length flat fillister head style 14 thread quantity per inch hexagon point on end of thread chromium surface treated unf thread series
2a thread class right-hand 2.000" thread length hexagon head style 9 thread quantity per inch 3 holes spaced centet to center 0.220 in. nom distance zinc surface treated unc thread series