Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4389867.

Simple glass bed clip, which only projects 2.5mm above the glass, and suits an overall thickness (glass plus heated bed) of 5.5mm to 7mm. The clips are 10mm wide. You could tweak the size by scaling the print slightly of course. Best printed in ABS, although I printed the first ones in PLA and they seem to be holding up well so far.