stick a split pin that comes with shimano pads?
I haven't got one- looked through all the old spares n bobs etc. wondering- would a thin ziptie achieve the same?
Any Shimano service centre will be able to order the new part for you. Exploded diagram [url= http://cycle.shimano-eu.com/media/techdocs/content/cycle/EV/bikecomponents/BR/EV-BR-M775-F-2691C_v1_m56577569830682460.pdf ]here[/url]. Looking at the diagram you either need part no Y-8CY 04000 (the pad axle) or part no Y-8CY 98020 which is the axle and snap ring.
Split pin from motor spares shop
LBS got them for me, Madison gave me the part number.
Halford sell packs of split pins for a couple of quid.
I just use split pins in mine as the bolt head is made of cheese I found.
Madison part number is 8CY 9802 and RRP is £2.49
I wouldn't fancy using a zip tie but as others have said a split pin is fine.
Thank you guys 🙂

