Reply to Need replacement screw for VCI 100 - side screw

I have managed to loose one of the 2 screws found on the left and right side overlap of the VCI 100, (they hold the top plate to the bottom plate)

I cant find a replacement anywhere, and i was hoping someone could either tell me the exact specification of the screw or a link for where i can buy a packet of replacements

Thanks

Nuttertools