Yeah, as a matter of course I replace my pad retainers with these because I carry allen keys not fucking flat head screwdrivers. Why Shimano doesn't make the allen key version standard I don't know.
Yeah lesson learned - I've filed it under things to remember and pass on to others when using disc brake bikes for the first time -such as and don't pull the levers when the wheel is removed - much swearing with a multi tool to pry back the pistons.
I managed to mangle my pad axle screw as its a flat head screw and I'm incompetent.
Anyone know of a replacement part not made of cheese? For 105 BR-R7070.
These look better but don't think they're compatible.
https://www.sjscycles.co.uk/brakes/shimano-deore-xt-brm785-pad-axle-snap-ring-y8jz98010/