2a 1st end thread class 9 2nd end bolt hole quantity 16 1st end thread quantity per inch bolt holes on flange face furnished with threaded rivets un 1st end thread series
right-hand 0.430" thread length 0.210" outside diameter hexagon shape cap 0.440 in. across flats, 0.190 in. thick, thread 1/8-27 nptf 0.430 in. long, first hole 0.750 in. from top, second hole 1.000 in. from top