What is the difference between bottle caps that are twist off vs non twist off. They look identical, both the caps and the opening of the bottle, so what makes bottle caps twist off?

Question

Title says it all but an example would be domestic beer bottles such as Bud Light vs imported beer bottles Dos Equis. Caps and bottles are identical so what allows the twist off to actually twist off. Dumb question but I’m curious.

In: Other

Answer 1

Follow up question, what determines which is used? Is there any difference in the bottling equipment needed?