I snapped a small bolt on my new K-edge; it's a 3mm Allen key.
Anyhow, does anyone know a large chain hardware store around Tachikawa or Hachioji? Etc?
That's what I thought as far as the material, and I'll try Tokyu Hands and see what's up.Tokyu Hands has a pretty good selection. Just find a DIY place around your hood - often will these sorts of things. Bear in mind, most of the chain catchers and stuff use alloy bolts - harder to find. You dont want steel - it will rust or corrode making matters even worse. Unless it's the derailler mounting bolt , then you definitely want steel (stainless) or Ti.
If it comes to that, but I need to replace some bolts on my bike anyhow so I will probably look for a few different alloy sizes.I'd go ahead and use steel, but then replace it rather soon.
Go with alloy, light and cheap and readily availableCertainly if you had an alloy bolt, replacing it with steel is not the best choice, but it could serve as a stopgap until you can get the alloy bolt. You can buy Anti-Seize compound here, Permatex if you are worried about the dissimilar metals getting stuck together. I like this stuff on my pedals, so they come off easy when the time comes to change them.
To stop stuff from rusting, I've found the CRC 3-36 sold here by KURE works really well. I use it on lots of stuff, the cast iron top of my tablesaw, my bikes and my hand planes too. It leaves no stinky residue either, which I like.