[Bill B]

Ok, hopefully easy one, I just can't find the answer, or the right nut...

Getting ready to put a stock set of mufflers back on the Z, but the previous owner/shop welded the brackets to the Magnaflows. Got the kit on order for the correct brackets, but looking to determine the thread size of the stud welded onto the end of the muffler (See attached photo).

Thank you in advance for the help.