2a nut thread a thread class right-hand nut thread a 2.000" nut thread a thread length 15.250" overall length 10 nut thread a thread quantity per inch unc nut thread a thread series
3a thread class right-hand 0.438" thread length hexagon head style 2.672" grip length 28 thread quantity per inch cadmium or chromate surface treated unf thread series
3a thread class right-hand 1.001" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unjf thread series
3a thread class right-hand 0.641" thread length hexagon head style 0.547" grip length 24 thread quantity per inch cadmium surface treated unf thread series