Cross threaded bolt on rear shock?
Discussion
Looking at the thread damage on the end of the bolt, it looks like it hasn't been run all the way through the nut so both are saveable.
I'd tidy up the bolt by clamping it in a vice and chasing the thread back with a square file to remove the first 2/3 flattened threads.
You can check the bolt thread is good by running a nut up it if you have a spare one, be certain that it is the correct thread.
Then run a M10, fine metric tap through the nut, even better from the other side so you stay on the already cut thread.
Should be fine as long as you don't go banzai tightening it up.
You can't go bigger in size anyway as the bolt will not go through the shocker.
It looks like you would be able to use a longer bolt and get another nut on the back if it came to the worst case scenario.
I'd tidy up the bolt by clamping it in a vice and chasing the thread back with a square file to remove the first 2/3 flattened threads.
You can check the bolt thread is good by running a nut up it if you have a spare one, be certain that it is the correct thread.
Then run a M10, fine metric tap through the nut, even better from the other side so you stay on the already cut thread.
Should be fine as long as you don't go banzai tightening it up.
You can't go bigger in size anyway as the bolt will not go through the shocker.
It looks like you would be able to use a longer bolt and get another nut on the back if it came to the worst case scenario.
A thread pitch gauge, to find out the size. If a modern European or Japanese car it'll be metric.
https://www.ebay.co.uk/itm/Silverline-Screw-Pitch-...
A thread restorer file.
https://www.ebay.co.uk/itm/Metric-Thread-Restorati...
That thread looks so bad I'd want to run a tap up the nut.
https://www.ebay.co.uk/itm/Silverline-Screw-Pitch-...
A thread restorer file.
https://www.ebay.co.uk/itm/Metric-Thread-Restorati...
That thread looks so bad I'd want to run a tap up the nut.
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