Fix screw holes in wheel center cap ?

[7E-Bodies]

@Racer57 I hope I caught you in time. LOL

I dug back through my Amazon history and found the link. $13 US!
https://www.amazon.com/gp/product/B09WN55FJJ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

[mtull]

@mtull the ONE NOS center cap I was able to obtain had zero threads. I am under the belief that the factory bolt was machined in such a way as to cut it's own threads. That when combined with the less than desired pot metal (my term), these threads were made to fail. I am absolutely certain I did the right thing by drilling out the old threads slightly and inserting 1/4" helicoils into a freshly tapped 5/16 thread. The coils lock down incredibly.

Exactly the info I was looking for, thank you

[YellowThumper]

While were on the topic of center cap screw holes, is it best practice to tap the holes if the center cap has never been used or do they come already tapped?

Yes the screws are self tapping. So in theory (because factory did) you can also.
However, I would personally tap them first. If original they are 50+ tears old now. And may be more brittle.
If aftermarket I would not trust the hols to be correct sizes for the self tappers.
Lastly, using a tap would be vastly sharper for cutting threads cleanly. Less chance of pushout.