I'd go for the c. And then screw in a new bolt, see what's going on and then tap it with a hammer to push the nut down a notch:-) But that's me (too much time spent with Murtle).
@EEI started
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I'd go for the c. And then screw in a new bolt, see what's going on and then tap it with a hammer to push the nut down a notch:-)
But that's me (too much time spent with Murtle).