Is anyone able to point me in the right direction as to what hardware is supposed to be used through the two holes at the upper end of the Left Return Frame (see image below)?
I'm doing a playfield swap and have found that a previous owner has drilled two extra holes into this piece. I have no idea why as there's nothing wrong with the playfield where the original hardware was. They've also used two different types of screws, neither of which are correct. The upper most one has a steel sleeve with a small taper on it.
I've ordered a new left return frame from Cliffy as in addition to the extra holes, this one is also beat up.
The page of the Williams Red manual that covers this assembly doesn't include the hardware for these two holes, nor does the parts list as far as I can tell.
Is this supposed to be a #6 pan head sheet metal screw with a steel sleeve of some sort? If anyone has a part number for a suitable sleeve, that would be appreciated as I haven't found anything that seems like it would be a good fit from browsing Marco, Pinball Life, etc.