First of all they are made of butter as it is their job to snap should you have a spill!
Secondly were talking about a fine piece of engineering............overtighten, hammer, cold chisel.......jesusss, what kind of animals are you?
I like the idea of using a torx, that may be the best solution. However, for what my opinions worth, i would take it to an engineer, someone that has both the right kit, and the know how!
