so we have that in common, the cars and for me also the motorcycles.
something that works very well for damaged cruciform screws, it's an electrician's straight cutting pliers, I take the head from the front with it, I tighten it with the pliers to mark the head and when the borrowing is sufficient, I squeeze hard and I turn, it works in most cases (when there is a head left to tighten)
something that works very well for damaged cruciform screws, it's an electrician's straight cutting pliers, I take the head from the front with it, I tighten it with the pliers to mark the head and when the borrowing is sufficient, I squeeze hard and I turn, it works in most cases (when there is a head left to tighten)
Use a Dremel tool with a cutoff disc and cut a slot. That would work better than what I used to do with the cheap reverse-hex pot metal bolts on car interiors - I'd cut down the bolt heads with a grinding disc until it had two flat sides, then I'd use a crescent wrench to turn it. 😎