Bolts - Where do I find part numbers/size

I need to find some bolts. Where can one look to find out what size, pitch, depth, part numbers they are?

-lower headlight bolt, the pain in the ass one

-grill bolts, more specifically the one that hold the "lower eyelid" on under the headlight

 

Best bet would be going to the dealer and have a look see at their computer. I tried looking here http://www.toyotapartszone.com/ but I couldn't find any pictures and their descriptions are a little vague.

Sorry I couldn't be of more help.

 

well yeah that would be the best place to start. guess I was just assuming they were some special/weird thing since he was looking for part numbers.

 

problem is I don't have the bolts. When the previous owner put the ARB bumper on they didn't put them back in..

 

http://www.toyodiy.com/

http://www.trademotion.com/partlocator/index.cfm?siteid=214001&year=2007

 

ask a local body shop where to go for hardware for your truck, or a salvage yard and get them yourself.

 

So the bolt/screw I need first off is that PITA lower headlight one, I don't have either. Would someone with a few mins, low temper, and a thread gauge give me some details on the bolt/screw?

Really I'm trying to make it less of a pain by modding it some.