3a nut thread thread class right-hand nut thread 0.593" nut thread thread length 2.100" overall length 20 stud thread thread quantity per inch two holes drilled thru shoulder, 0.046 in. dia, 180 deg apart, on 0.687 in. bolt circle dia shouldered unf nut thread thread series
2a nut thread thread class right-hand nut thread 0.220" stud thread thread length 3.775" overall length 32 stud thread thread quantity per inch second shoulder 0.260 in. dia AND0.100 in. wide located 2.970 in. from nut end, shank dia between shoulders is 0.150 in. shouldered unc stud thread thread series
3a nut thread thread class right-hand nut thread 0.395" stud thread thread length 1.374" overall length 16 stud thread thread quantity per inch 0.250 in. dia by 0.400 in deep concentric hole in stud end, two slots in shoulder 90 degrees apart shouldered unf nut thread thread series
2a nut thread thread class right-hand nut thread 0.340" nut thread thread length 2.350" overall length 28 stud thread thread quantity per inch both ends undercut 0.060 in. long to thread root shouldered unf nut thread thread series