I know exactly what you mean but don't know the name for the piece. Have you tried vandykesrestorers.com or www.wmjrigby.com? Both have loads of window hardware.

A hint to remove the paint - boil water in a pan you'll never use for cooking. Mix in some baking soda. Then drop your rings in and let them cook for 10-15 minutes. Pull them out one at a time and the paint will peel right off.

In our old house, our window trim was originally stained dark brown and the rings were the color of the stain.

Good luck.

Oooh, ooh, tom, I do so wish I had your answer. I'll add my name to those seeking this exact same item. I have a 20's bungalow and have stripped years of white paint from all of the trim. In the process we removed all those sash stops (or window jambs? what are they called exactly?) and are now also dealing with trying to replace the dozens of crudded-over, oxidized brass finish-washer trim-grommet thingees in order to replace 'em on the windows.

Mine have 2 slight little teeth on the back to keep them tight in the wood. They are more like trim washers than like grommets, except with teeth, slightly deeper and with an ovoid hole for the screwhead.

I fear I've lost many of them in the stripping process, but perhaps I can still try the boiling trick. Do they retain their shininess at all, post-boil?

Another great source: the Harwick Company (click image).

I'm glad I could help!

Yes, the boiling trick takes the metal piece right back to it's original finish. I've used it with eastlake pieces and tiger striped metal. Both came out copper and black.

I'm 10 years into old houses and between this forum, oldhouseweb.com and ambungalow.com, I've picked up lots of info thanks to others who have been there before me!

I wanted to report back in: just received my stop sash grommet order from killian hardware, and they are absolutely perfect matches for my old ones. The brass-coated steel (cheapest option, and look perfectly nice) cost about $0.50 each and come in boxes of 100.

Hurrah for Gardenweb!

Appreciated these sources very much. Found another one here: http://www.kilianhardware.com/stopbeadad.html

They were the least expensive (on sale for $0.85 each, plus the cost of the screws, which came in multiple sizes).