here's the best deal i've found on them. actually, this site has some of the best prices i've seen on a lot of 4 link parts. anyone found em cheaper? a local machine shop (guy making my links) can make them for me for about $2 a piece, but i know he'll be taking a hit only making like 10-20 of them for me, and i don't want to do that to him, as i know he's taking a hit already on the link bars. also, he can't single point them as deep as i want them treaded, so i would have to buy him a left handed tap, which again, i don't want to do.
http://www.suicidedoors.com/34-16Threaded4-LinkBung.php
greg