Power terminal question

I use the isolated studs from late 60's to late 90's GM's sourced from the junkyard. Pick-ups usually have a two-post version on the firewall. Cars will have a single post version on the firewall or on the core support. They have 'fingers' that surround the stud to protect it from accidental contact and still allow the wires to reach it. Perhaps not as absolute as a boot, but I've never had a problem with one in ~20 years of using them.