How tight is too tight?
The M5 x 12mm will work just fine if you use a decent power magnet to pull the nut to the top of the extrusion while tigntening down the bolt.
What is the acceptable margin of deviation for these diagonal measurements on the 500*500? I’ve assembled, measured disassembled squared, tightened a few times and cant get below 1.5mm deviation between the two.
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