2a thread class right-hand 0.719" thread length fillister head style 0.052" hole diameter 28 thread quantity per inch zinc screw surface treated unf thread series
3a thread class right-hand 0.469" thread length 1.500" overall length 20 thread quantity per inch 30.0 deg chamfer from minor dia of thd at end of shank ball unf thread series
3a nut thread thread class right-hand nut thread 0.469" stud thread thread length 1.406" overall length 18 stud thread thread quantity per inch 0.031 in. by 40.0 deg min to 50.0 deg max chamfer at both ends cadmium surface treated unf nut thread thread series
3a nut thread thread class right-hand nut thread 0.469" stud thread thread length 1.406" overall length 18 stud thread thread quantity per inch 0.031 in. by 40.0 deg min to 50.0 deg max chamfer at both ends cadmium surface treated unc stud thread thread series
3a thread class right-hand 0.680" thread length hexagon head style 1.660" grip length 24 thread quantity per inch cadmium surface treated unf thread series
any acceptable stud thread thread class right-hand nut thread 0.500" nut thread thread length 1.250" overall length 20 stud thread thread quantity per inch stud end thread 0.012 in. oversize unc stud thread thread series