Packard Forum Index » Post-War (1946-54)

How are the "Ultramatic" script pins secured?

If they are straight unthreaded pin like studs cast with the script probably one of two ways.

If you can reach the pin from the back side such as a trunk lid, front fender or door where the upholstered panel can be removed and the hole is roughly the same size as the stud probably done with a flat style speed nut. Packard used both round and rectangular style but today use what you can find in the correct size.

If the back cannot be accessed such as in a double walled part of the body like near a wheel well or if there is something structural in the way that can not be removed, the hole is generally about twice as large as the stud. In that case there was probably a tubular speed nut pushed in the larger hole and then the script studs were pushed into those.

To get the proper fastener you need to measure the diameter of the stud and order the appropriate size. Here is a small sample of fasteners from the Restoration Specialties catalog. They have a fairly good assortment of styles and sizes including some sealing types if it is going somewhere water leaking in could be a problem -- like in the trunk..

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  tubular.jpg (82.08 KB)

See attached image. I had noticed the recessed area around the pins before but didn't think about it. The rear-most pin is accessible but the other two aren't. The pins are 1/8". The tubular nylon pins 13964 are 1/8" diameter with 1/32" head thickness and 15/64" head diameter. The recessed area diameter is greater and the depth will result in a .01725" stand-off.denverautofasteners.com/13964-nylon-tubular-nut-1-8-stud-size/

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  Ultramatic Script IMG_20220901_125032571_PORTRAIT.jpg (68.04 KB)