Olivetti M24 Mounting Bushes for Bus Converter

[Fred Cisin]

> I looked up rivnuts and they certainly look similar. They are definitely 
> not standoffs though. I shall look closer at rivnuts.

also look at nutserts.

Riv-nuts are pop-rivets with a threaded center.  Usable through sheet 
metal, and into blind holes (very carefully)
Nutserts call for drilling and threading a hole and screwing them in.

I'm assuming that you are talking about threaded inserts in a plastic 
piece?