Front emblems I have removed were held on by a single "tin nut" - one of these annoying sheet metal hex nuts used to attach trim pieces. It cut threads into the plastic post of the emblem when it was installed. Unscrews with a 10mm socket.
That is the OEM emblem nut. It is called a PAL nut.
------------------ " THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite. "THE COLUSSUS" 87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H " ON THE LOOSE WITHOUT THE JUICE "
Did you ever find out the correct information for this?
So far it appears to be the shiny cad-like plating style. Unless someone else has one that is the black oxide style.
I have about 6 NOS emblems and it appears as though GM never included the attaching nut with the emblem.
GM has always been good at being hit & miss for attachment hardware when it comes to emblems. It kind of sucks when you really need the correct assembly line parts.
So far it appears to be the shiny cad-like plating style. Unless someone else has one that is the black oxide style.
I have about 6 NOS emblems and it appears as though GM never included the attaching nut with the emblem.
GM has always been good at being hit & miss for attachment hardware when it comes to emblems. It kind of sucks when you really need the correct assembly line parts.
Mine was 100% black oxide. I will try to go into my garage in a little bit and find it and then post some pics.
I have a large assortment of those nuts but I know none of them are metric.
Now I may have to see if I can find the assortment of used hardware I pulled off of past parts cars as I never thought about the rear nameplate having them.
I recently had my front nose off on my 88 GT to be painted and took the below picture before I removed the emblem. The speed nut was lightly rusted as you can see and appeared it would have been shiny new. As stated earlier, I removed it using a 10mm socket.
------------------ 1988 Pontiac Fiero GT, Black w/Beechwood interior Featured in the 2018 Fiero Store calendar month of May 2018 Volkswagen Golf GTI S
I recently had my front nose off on my 88 GT to be painted and took the below picture before I removed the emblem. The speed nut was lightly rusted as you can see and appeared it would have been shiny new. As stated earlier, I removed it using a 10mm socket.
Awesome shot!!! That is what I was looking for. The condition doesn't tell me what coating it had unless you saw some shiny, un-rusted area but does show me the exact style.
I took the rear fascia off today to do some cleaning and noticed the identical nuts on the nameplate as in your photo. These are obviously black oxide coated but seem to be for a smaller diameter stud than the stud on the front emblem. Are the studs on the rear smaller than the one on the front?
