glass heated bed holder

This glass bed holder is used together with 8 M4 bolts.
You can tighten the bolts with the M4 wingnut. To keep the wingnut in place i would advise you to tighten it with a M4 nut.
This was designed for my anet A8. My glass bed is 4mm thick.
https://www.youtube.com/watch?v=Ebyn4qKSb9I
(want to warn you this is sort of out of date and doesn't function 100% will upload a better one soon)