2a nut thread thread class right-hand nut thread 1.000" stud thread thread length 5.906" overall length 11 stud thread thread quantity per inch 0.625-18 unf-2a x 0.750 in. lg thd on nut end of 0.625 in. dia @shank, 0.125 in. dia hole thru 0.125 in. from nut end stepped unf nut thread thread series
3a thread class right-hand 1.188" thread length dee head style 6.250" grip length 18 thread quantity per inch outer periphery of head opposite flatted edge machined to 0.438 in. from centerline unf thread series
2a thread class right-hand 0.312" thread length fillister head style 32 thread quantity per inch surface treatment iodine dipped cadmium surface treated unc thread series