
See there's a nut missing. I'm pretty sure the bolt is M5, but a normal nut won't fit in the slot, and there's nothing to stop it spinning freely if I could get one in. Could someone have a look and measure the nut that should be there. My best guess is it should be a thin square type, with 8mm sides and about 2.5mm thick. Could anyone confirm so I can track one down. I bought it second-hand and it was gone before I got it. Cheers.

