I am repairing an aluminum brake (i.e., a brake for bending aluminum house flashing/cladding). It is made of aluminum castings and extrusions, held together with steel bolts and screws. Every single bolt/screw is corroded in place! Not so much rusted as bound-up by corrosion of the aluminum it's in. AND ... all the screw are Phillips head! &!@^&%^%$&*?!
Anyhow, I WILL get the screws out and when I put it back together I will not use Phillips heads and I will coat them. So, the question is: do I coat them with anti-seize, or with anti-oxidant? If anti-seize, does it matter which form?