I recently purchased a f d front plat Used and someone drilled 4 holes all the way through the front plate. On the compression side And Healy coiled the rest. Does anybody know why and where can I get conditioner bolts?

 

welcome to the board.

i've never seen/touched one in person, but i think that may actually be a 20B front housing.

EDIT
just realized i didn't answer your actual question. you can try the Classified section, here on the board, when you get enough posts to use it. of course, there is also places like EBay, Facebook, etc..

that said, if you're using this on a 13B, i don't know how you would handle those through-holes.