Yeah, it's weird how they disappear...it's like they are one of the few removable bits so people must remove them for some strange reason and never put them back?? I know one guy who has a spare lockdown bar but because they're hard to find he's not going to part with it... I guess I don't blame him but I think if I had a spare, I'd like it to go towards completing someone's machine that might otherwise be parted out.