2a nut thread thread class right-hand nut thread 0.600" nut thread thread length 1.470" overall length 16 nut thread thread quantity per inch ends to be round or chamfered unc nut thread thread series
3a nut thread thread class right-hand nut thread 1.000" stud thread thread length 6.500" overall length 10 stud thread thread quantity per inch navy special project point on nut end 0.375 in. nom. length unc nut thread thread series