Hello Z peep holes,
I am getting around to putting the interior together on one of them Z cars from Janyouharry of 1970, I was wondering what kind of carpet snaps the OE firewall insulator was equipped with. I have two styles that virtually fell off some of the pieces that I had here, and that @grannyknot supplied from his 1971??? orange car for the purpose of comparing and recreating of some fresh insulation.
The ones that came off @grannyknot's pieces look to be a kind of "pyramid" shape with a masonite board circle behind them, and a countersunk screw in the center that has a nut behind the masonite circle on the back. Looks to be an M6 countersunk philips screw. Probably 15mm in length. They seem to match the ones from #7214 that I have here, but haven't removed from there. That car is a '71.
The other ones I have that came off this car are some generic style ones that have 3 little tangs that fold over on the triangular back side and are staked into place.
I put quite some effort into recreating the original firewall padding, so if I can use the correct carpet snaps, I'll go that route before gluing it to the firewall.