Does anyone know how you can get any parts for a Pro-ac speaker ?

Not sure what ProAcs you own but these pegs look almost identical to the pegs on my Response 2.5’s. I measured the  ball diameter on my pair and its 0.225 in. The ball diameter of the peg I linked to below is .just 005 in. larger. They Might work, I’m unsure of the other measurements but at 41 cents each I’d buy a couple just to try.

https://www.madisoundspeakerstore.com/grill-fasteners/peglock-grill-fastener-peg-and-socket/

Mike , The ones you are showing me are correct except they are not long enough...I have some of those........Thanks for your information anyway..........The one's for the Response 2.5 are the same as the one's I need....Thanks

Sorry, I forgot you mentioned the Madisound pegs already.

The pegs in the link below should work, I measured mine with my digital caliper and found the shank from the flange to the ball tip to be 16 mm long and the ball 5.70 mm in diameter as opposed to 6 mm in the pegs I linked to but I suspect they have compressed the .3 mm over the years.

There are detailed dimensions in the item description.

http://m.ebay.ca/itm/NEW-20-Pairs-Ball-and-Socket-Type-Grill-Guides-Pegs-Plastic-Screws-Speaker-Part...

Mike   You are the man.....I just bought 40 of these and they look mighty close......It's a little crazy to have to buy these from China when you can't get them from Proac.....Or maybe that's where Proac gets them.......I'll let you know..........Will

Yes, let me know please,  I cringe every time I remove the grills,  it would be nice to know I can get proper replacements.