Mick F wrote:1. file the flat a little to make the threads poke out far enough - too thin and the threads came out too far. Either way, there must be a specific/definite/correct size for them
What material would be best?
SS would be too hard?
Brass would be nice, but not tough enough?
i don't have a definitive answer, but here's my thoughts.
1. i'd imagine that some are too fat, and some too thin because the size required depends on your combination of cranks & axles. so, err on the side of the too fat with the option of filing.
2. something softer than the crank & axles, that can be filed reasonably easily and if they don't come out later can be drilled. so, stainless and brass are both out