Need some help with a project I have. A bit off topic of old cars but I know the knowledge of the Hambers will be helpful. I will be bolting steel tracks into a 6" aluminum square tube post (1/4-20 bolts). An arm with a camera attached will ride along these tracks. Kinda hard to describe I guess. It all mounts to an atv. The question I have is, steel bolts would work fine to hold the tracks, plenty of holding power. But the allen head bolts hold water and rust easily. I was thinking about using stainless button head allen bolts instead (1/4-20). I know that stainless galls aluminum more then steel and is more brittle. Need the holding power of steel but not rust or break easily. Do I- - use anti-seize on bolts so not to tear up threads (will they come loose with vibrations?) - leave then bare ( will they gall up before I get a good torque on them?) - use thread locker on them I don't see the tracks ever coming off of post often, if ever. But can't rule it out either. Thanks for you help.