Hello everyone.
I have two questions. I have a 1959 Chevy Apache 3100 Step-side and was wondering, what are the dimensions of the two bolts (Upper and Lower) that attach the fenders to the cab. I disassembled the truck for a rebuild and took off bolts that "worked" and the original threads are pretty messed up. I want to helicoil them back to original specification if I can. Also I am wondering what other hardware (washers and stuff) goes on with them.

Thank you guys for any info y'all can help with