In November 2012 Mopar collectors guide there was a Frank Badalson article where he references a Pink T/A Survivor. Here is a paraphrase of what he says about this car and many of the originals he has looked at.

The (4) top many times are 8-18 phillips head about 1-1/4" long tapping screws with loose washer despite the fact that the captive nut is for 10-24 machine screw.

For the bottom bolts he says that he has found the same as above and also 10-24 phillips pan head, 5/8" long with a .44 captive washer. T

Since this is referencing a T/a car I would assume most of this information would pertain to a Hamtramack built car.

Mike Afflerbach