Raleigh used "self-tapping rivets". They are really not rivets at all, but screws with a helical thread and no slot, that creates threads when tapped in.
These are for sale all the time on eBay for "Choppers" from England. They are inexpensive. I would still use some sort of glue when putting them in, because there is very little metal in the head tube to hold them, and they can come loose.
Louis Schulman Tampa, Florida
EdVintage63@aol.com wrote:
> Following up earlier Raleigh headbadge advice:
>
>
>>On
>>reinstallation: if I'm feeling especially anal-retentive, I tap the
>>holes with a miniature tap and use tiny machine screws...then it's
>>removeable for the "next guy".
>>
>
> I've got a similar issue with my '71 International. Shining a flashlight down
> the headtube creates a little jack-o-lantern effect, as all the rivets are
> missing. This was charming at Halloween, but now that it's nearly Thanksgiving,
> I'd appreciate a fix. I fear my heron is clinging to the headtube solely as a
> consequence of Raleigh mojo. Or maybe Imron. I don't currently have a
> miniature tap nor do I anticipate my in-laws giving me one for Christmas. Clever
> alternatives? Don? Steve? Bueller? Anyone?
>
> Ed Granger
> Lancaster, PA