Genuine Canon collar retaining screws for the collar used in the EF 70-200 2.8 L USM, EF 70-200 2.8 L IS USM, and the EF 70-200 2.8 L IS II USM lenses.  Package of 1 screw. Made by Canon Japan.
The collar used with this screw is in stockhere.
Same day shipping on most everything. Stocking over 6000 items including cameras, lenses, light seal kits, Owners manuals, parts, Service Manuals, tools and more.