m200 slotDIN 981 Slotted Round Lock Nut. Slotted Round Lock Nuts, also named Round lock nut, Slotted Round nuts, Shaft lock nuts, made of steel, M10-M200 from China lock nuts manufacturer.How to open the sd card slot for the canon eos m100 or the canon m200 Alot of people seem to have this question on forums and ments for other videos so i de...more