Any chance of a picture?
Owain
I was in the same position regarding such clips for some windows in my
mother's house.
Found them on the web - can't remember where now - and was so disgusted by
the gouging price we decided it made more sense to replace the windows.
Sure it cost a lot more but I couldn't bear to see that much money
basically go down the pan - the windows were never that good and were way
past their best anyway.
But a tip - look very carefully at the clips and try to identify any
markings on them, especially maker's name. That is what enabled my
searches to find what I wanted.
Rod