Posting the link. Thanks for the find!I use 13mm stainless steel spiral rings from McMaster Carr. Part number 92347A110 they have more than double the side load capacity of the standard 13mm external snap rings and they do not require external snap ring pliers to remove them or install them. I use a small flat screwdriver to do so. I like the stainless-steel rings due to the corrosion resistance as regular carbon steel rings can develop rust on them because of moisture and a rusted retaining ring becomes weak from rust pitting and there is a greater chance of retaining ring failure.