bolt head id on 1969 body

fishy68 said
1 and 2 I have no clue on. What do you mean by "E" and "I/C/S" bolts???

3. Yes. 3/8" lock wacher in some places. 3/8" flat washer in other places.

4. ??? What do you mean "what is on the head"?

Are these question are do to you doing a concours restoration?

Hi,
yes, councours. these are makings on some of the bolt heads and I am just finishing a restoration on a 340 dart. I figured I might as well get the right bolts oin the right place

thanks