Grease/antiseize for steel to aluminium

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This is just for my sewing machine feet. It was my gran's , from the 1950s.
Had rubber feet attached to aluminium frame with steel bolts/screws. They have perished over time and the paint has flaked away from around them and the bolts were a bit rusty (guess it might have been subject to damp at some time, it was in her attic for a while).
It started scratching the table so I decided to replace the feet and have had a nightmare getting 2 of the bolts out (one I had to -carefully -use a blow torch on - hard to get parts for a machine so old, new rubber feet are not specific to it)
Have removed the rust from bolts (using vinegar) and coated them in wd40. Before I put the new feet on I want to put something on them to stop them ever seizing again. Not really looking to buy something especially for this job.
I have lithium grease (LM2), 3in1 oil, sewing machine oil, silicone (plumbers) grease, vaseline... would any be suitable? if so which would be the best?
I don't think I need to touch up the paint around them (that bit is covered up by a case and I don't intend for it to get damp again) but might be good to put some type of grease/coating on there too.
Thanks in advance
 
Personally I'd use ceramic grease (as it contains no metal particles) but in this situation any of the greases you have will do - the thicker the better!
Ceramic grease is available from motor factors.
John :)
 
Sorry for slow reply. I had never heard of so was trying to do a search for ceramic grease and duckduckgo was down for ages,then had to go to work...
I have used lithium grease for now but plan on getting some ceramic grease next time I go to the town - it seems like a useful grease to have. Thanks again for your reply.
 
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