There are two types of round clamp, with the same body. One has an ordinary knob for tightening the clamp, the other has a knob with a long shaft (some 2-3 cm). The latter can be useful if the clamp is attached to a metal plate wider than the clamp, so that the knob will clear the edge of the metal plate and be easier to turn.zzffnn wrote:Thank you very much, Saul and Enrico!
Saul:
I am open to plywood or whatever that works.
Enrico,
The round one you linked to (263220240999) looks very good and I would likely go with that one. The long one (282822071250) is way too long (I will soon upload a drawing with my dimensions).
No results were found on eBay, when I searched 232409130596 or 263439738870 .
There is also a round clamp integral with a lockable rotating base, which you probably don't need.
PS - There used to be a trick for seeing items based on their eBay number, even when the seller has not included your country among the shipping destinations. I forgot it, but someone else may be able to explain it.