Correct 70-72 Front Wheel Opening Molding Screws?

X2 what Brad said Flint built car, you may find sum with the same head, but a little longer. That’s what I found with the originals on my car.

 

I believe the second type was what was used on my 69 Oshawa Canada built car.
Duane

 

First type.

 

Well let's see what GM / Buick said:

The ’70 cars carried 2 types, Front #4879432 and rear #4879431.
An alternate screw according to Buick was #9420486.

The ’71 and ’72 cars carried just one style from what I’ve seen Front and Rear #4879431 of which was updated by #588546.

By April of 1976 ALL outside (NOS) moldings and trim carried a screw package #588546 for replacement of front and rear w/o moldings.

1st pic - #4879432 – AMK #B-12200

2nd pic - #4879431 – 588546 – AMK #B-11531

3rd pic - #9420486 – AMK #B-11168

The 2nd pic of Adam's post is a close representation of the original #4879432 - B-12200.

 

My '72 was built at Fremont in March '72 and has screws very similar to this style at every location, front and rear:



My '70 is unrestored and has original paint, was built at Flint in April 1970 and has screws these on the rear:


and these pan head screws on the front:

 

My observations are the pan head screws were used on the front wheel well moldings at Flint.

Pics of the unrestored GSX Mark M. @gsxnut brought to the 2018 GS Nationals.

First pic is the pan head screw.

 

Same pan head screws on @collector Brown 70 Stage1

 

Simple. Remove the wheel lip mounding altogether like Jim Bell did when he rolled the rear lips!

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I've taken deductions occasionally as I do not agree the pan head to be correct for my '71 front WOM

 

my stage was built the second week of March 1970 has the same style head screw on all four corners. I also have a set of original paint 70 GS 455 fenders in the basement that have the same style head screw and the car was not a Flint car. And that was a late March built car also.

 

I'm going to venture a guess here based on the replies above that there's no correct answer here as to how they were actually built and they used whatever was on hand and hence is a point (pun intended) that either shouldn't be judged or a concensus of how it should've been is reached & going forward base judging on that.

 

Here are pics of the original WOM screws on my 1971 Platinum Mist car.