3a nut thread thread class right-hand nut thread 0.562" stud thread thread length 2.062" overall length 16 stud thread thread quantity per inch chamfered on stud thread on stud thread end. 0.047 in. by 45.0 degress. round on nut thread end unf nut thread thread series
3a nut thread thread class right-hand nut thread 0.500" stud thread thread length 1.812" overall length 16 stud thread thread quantity per inch grounded end on nut thread end 0.062 in. long. stud end thread chamfered 0.062 in. by 30.0 degrees unc stud thread thread series
2a thread class right-hand 1.062" thread length hexagon head style 0.312" grip length 28 thread quantity per inch cadmium surface treated unf thread series