Quoted from The_Director:3. Coil stop screws (these shear off and sometimes require plate replacement if you can't drill out. Stainless steel ones from bolt depot are like $5 for a bag of 100 and worth their weight in gold
THIS^^^
i started a thread about this on theStern Pinball Enthusiasts Group awhile back..
https://www.facebook.com/groups/35138159505/permalink/10157990994494506/