Bent lock stop bolt

Hi

Just fitted new wheels and tyres to my 90. Turning the one way has no issue. The other way catches on the radius arms.

I beleive this is due to the bent lock stop bolt. Now ive searched and found the thread is m12.
But how do you guys get around not bending them? I dont want smaller tyres, or wheel spacers. And know the lockstop bolts are there for a purpose. Just wondered what i can do.
I dont trust any bolts from hardwear stores either, they just seem to cheap fudge and the same is only going to happen again. And can only find britpart as an alternative, which are also going to be cr*p.

Thanks

Quality bolts, such as high tensile steel, I get my bolts from a local trade fastener supplier, better quality and cheaper than what the retailers sell their play dough bolts in bubble packs for.
There will be a fastener company near you.

How much full lock force are the wheels turning with to be bending lock stop bolts?!

cant see how they get bent unless something has ****ted them while driving but I would have thought that unlikey.