Hey guys!!!! I'm desperately seeking the part # of the 4 screws that go into the silver housing mount ring (of a Canon 70-200 IS 2.8mm) pictured here (if it doesn't show it's the 4 longer screws--pic not to scale I don't think):
Any takers? No one seems to know this online! I've searched nearly everywhere!
If you are in the US, then try a place like Grainger. They stock every size imaginable.
"No one seems to know this online! I've searched nearly everywhere!"
And Grainger is not likely to have any or help you either. You really do need to contact Canon. They are going to be proprietary, odd head, metric and probably an odd pitch size.
Why do you need them? If you have any hobby shops that cater to the R/C crowd small metric screws are something they would carry. Otherwise you'll need a big supply house unless you want a boxed quantity. Canon may be the best choice if they can identify what you want & sell small quantities.