[spdbrake]

I use Stainless .41" on the wheels .32" inconel (because of the temp) on the the header bolts. I also use model airplane fuel hose as an anti-chafe around the wheel webs where the wire wraps.
Please don't listen to the "leave the safety wire slightly loose so you can see if the spinner is moving" advise.
IMO its an excuse for having applied crappy safeties and defeats the purpose for safe-ting in the 1st place.

.20 & .25" are typ used on electrical cannon plugs, and sometimes on small hardware (#10 and smaller) on Fuel Controls, Hyd manifolds, etc..