Mac's has repos of those fasteners. They are UF40 and there is a tool to install them. The tool is UF40T. The price for the UF40 is $8. I ordered one with the tool, but when I installed it, the little gizmos that pop out to grip the body socket fell out. I worked for over an hour but could not figure out to put them back in. So I ordered another with an order for some other stuff. When I finally got my order (Mac is soooo slow) they had sent me a package of hog rings. The package was labeled UF40 with the proper description, but it was filled with 50 hog rings. So I called customer service, but the lady did not know what a hog ring was or a UF40. I had to show her in the catalogue what they were. They are sending me a UF40 according to the email I got yesterday. I hope it isn't more hog rings.