On Mon, 17 Jun 2019 18:25:33 +0100, Brian Reay wrote:

On 17/06/2019 08:01, Andy Burns wrote:
Brian Reay wrote:

One part is top hat shaped. The brim stays visible when fitted, the crown
goes into the work piece. The hole where the screw goes is filled by the
second part, which just pushes in.

The first part of these look upside-down from what you asked for, but
would they work?

https://amazon.co.uk/dp/B007OC6C04

Thank you.

If I could find some of the correct size, they would be a reasonable
fall back for the bit that is missing but the original fits flush.

Those look remarkably similar to the covers used on bike cranks when the
crank is bolted on to the BB axle. All of mine are threaded, although they
also worked well by tapping in and screwing out. Trouble is, there are holes
for the removal tool.
--
Peter.
The gods will stay away
whilst religions hold sway