Rear sway bar bolt size help?
 

Since my LeSabre came with FE1, and the rest of the car is FE5, I have a rear swaybar just sitting around right now. I have the endlinks, beefy Moog parts. Problem is, I can't find anyone that will sell me new bolts for the bushings. I have the center bushings for the bar, just no bolts, since the car never had one to begin with (FE1 cars never got a rear bar at all). I've tried all the parts stores, and no one has a listing, they just point me to a junkyard to try and dig one up.
Can anyone tell me an approx. size and thread pitch? Everyone Ive spoken to so far has told me I need to go to a junkyard to get them. Um... no. Especially not around here. They would probably break off due to rusting out before I could get them. So I want to start fresh with new ones. Anyone got an idea where I can get em? Dealer if I have to? I really want to finish the complete FE5 setup, and those are the only parts I'm lacking. Without a rear bar at all, and having the FE5 bar up front, handling is really sketchy in the snow. So I really want to get that rear bar on ASAP.
So if anyone has a lead, I would appreciate it! :thumbup2

GM is very typical in their bolt sizing..

M8 x 1.25
M10 x 1.50
M12 x 1.150/1.75

Those should be your most common bolts. I'm pretty sure you'll find it's an M10 x 1.50