Canon EF Screw CB2-0397
Canon CA2-4585 EF Screws
Canon XA1-7260-559 EF-EF-S Screws
Canon CD4-2984 G10 Screws
Canon YA2-0929 EF Screws
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 stock here.
Canon XA1-7200-606 EF-EF-S Screws
Canon XA1-7200-706 EF Screws
Canon CB3-2112 EOS Screws
Canon X96-1723-020 EF Screws
Canon XA1-7200-456 EF EF-S Screws
Canon CY2-1607 Speedlite Screws
Canon CA2-4586 EF Screws
Genuine Canon lens contact retaining screws for over 100 of Canon EF, EF-M, EF-S, RF lens products including the EF 14 2.8L, EF 20 2.8 USM, EF 24 1.4L II USM, EF 28 2.8, 35 1.4L II USM, EF 50 1.2L USM, EF 50 1.4 USM, EF 85 1.2L II USM, EF 100 2.8 Macro, EF 16-35 2.8 L II USM, EF 70-200 2.8 L USM lenses, EF 200 2.8L USM, EF 200 2.8 L IS USM, EF 400 2.8 L, EF 400 2.8 L II IS USM, EF-M 18-55 3.5-5.6 IS STM, RF 28-70 2.0L USM and many others. Package of 2 screws. Made by Canon Japan.