First you'd have to figure out what the correct bolts look like. They might be big screws instead of bolts, I'm not sure. I hear they varied through the years, so it may depend on what year you're working on. In another thread it was suggested that the voltage regulator anchor head type may be correct for 70, and that they should be plated the same as the bracket. I don't have any originals myself, but maybe if you post what year/make/model your working on, someone else will chime in?

Tav