Canon EF 400mm f/2.8L Hood Screws

[Pick]

I have managed to loose 1 of the screws that holds the adjuster on the lens hood on my Canon 400mm 2.8.Does anybody know the size so that i can buy a couple.

 

[wookie6262]

I lost the ones on my Nikon 400mm and replaced them with some thumbscrews off Amazon. I cant help wit thesize but it only cost a few quid and they are better than the original.

 

[Canon Bob]

If it's the same as my 600/4 IS then it's M2.5 x 6mm